Can insect-based cat food help you reduce your cat’s carbon pawprint?

Sustainability is a word you hear a lot these days, as more and more people compete for natural resources and deal with the effects of climate change. Sustainability is defined as “meeting the needs of the present without compromising the ability of future generations to meet their own needs” (United Nations Brundtland Commission 1987). So, you recycle plastics, take reusable bags to the grocery store, and limit the use of your car to reduce your “carbon footprint”.

How can you care for your cat sustainably? How can you go about reducing your cat’s carbon pawprint? In this post, we will talk about one of the recent trends in pet food aimed at sustainability: the use of insects as a food source (Reference 1)

reducing your cat’s carbon pawprint


Do Insect-based Foods Provide Sufficient Nutrition for Cats?

Our cats are obligate carnivores and are designed to eat primarily meat. Since many of our cats live indoors with us, they are not out hunting – we provide them meat-based cat food. Raising food animals (chickens, cattle, pigs…) for pet food produces significant amounts of greenhouse gases (carbon dioxide, methane, water vapor…)  and so is not very sustainable.

Insect Nutrition

  • Meal made from insects has as much protein as animal meal.
  • Insects have amino acids that are very similar to those in animals and cats are able to digest these.
  • Insect larvae are a good source of energy due to their fat content.
  • Insects are rich in minerals and provide necessary dietary fiber.
  • Insects are more protein dense – per weight, it takes 3 times more chicken leg meat to provide the same protein as insect meal.
  • Insects make up 2% or more of a feral cat’s diet.

Reducing Your Cat’s Carbon Pawprint by Feeding Insect-based Foods

  • Insects require less water and land use than food animals.
  • There are lower greenhouse gas emissions when farming insects compared to food animals.
  • Mealworms and fly larvae convert 45-55% dietary protein into edible body mass compared to the 33% conversion rate of a chicken.
  • Insects can feed on fruit and vegetable by products, household waste, slaughter plant waste and convert this into edible food.

What Insects are Used for Pet Food?

There are three insects currently used in animal foods: black soldier fly larvae, mealworm larvae, and adult house crickets. Black soldier fly larvae are most commonly used in pet foods.

Are Insect Foods Safe for Our Pets?

The insect larvae are blanched, chilled or frozen, then dried and ground into meal. In the process, moisture is removed, reducing microorgansims and inactivating enzymes that cause spoilage.  Heat treatment of the meal when making pelleted foods helps reduce bacteria and microorganisms.

Most insect bacteria and viruses usually do not affect animals and humans.  However, insects can be vectors of some pathogens, parasites, and prions.  Feeding the insects on vegetable waste (and not animal waste) makes insect food safer.

More studies aimed specifically at cats eating insect-based foods are needed.

Do I want my cat to eat bugs?

In Asia, Africa and South America, it is not uncommon to find insects on the menu. Chapulines or fried grasshoppers can also be found in restaurants in Mexico and even in California and Texas. However, insect consumption is not widespread in western countries.

Researchers from Oklahoma State University conducted a survey of 1,021 Americans in 2021 to see if they would be more willing to consume food containing powdered crickets than raw oysters (a food that although widely eaten is viewed as “yucky” by some). The findings: about one-third of Americans are willing to both try and consume insect products on a regular basis, provided they are tasty and safe to eat. (see Reference 2)

Another survey (Reference 3) in the United States that targeted dog owners found that participants:

  • were more likely themselves to try food made with insect flour than to eat the whole insects
  • were  more willing to incorporate insect meal but not whole insects into their dogs’ diets.

Where Can I Buy Insect-based Cat Food?

A casual Internet search turned up a handful of companies marketing cat foods with insect protein.  Most of these are based in Europe and Asia.  The only cat food that I could easily purchase in the US is made by the Canadian company Catit.  Catit offers dry cat food mixes of insect protein with chicken or herring called Catit Nuna. I contacted Catit regarding feeding trials with these foods.  They responded that Catit Nuna is formulated by pet nutritionists and has undergone feeding trials per AAFCO protocols for acceptability, digestibility and palatability.

Insect-based cat foods certainly sound like they may offer some options in reducing your cat’s carbon pawprint. However, it looks like we will need to wait for more research and development before these foods become mainstream.

REFERENCES:

  1. Valdes et al., Insects as Feed for Companion and Exotic Pets: A Current Trend. Animals 2022, 12, 1450. https://doi.org/10.3390/ani12111450
  2. Melissa Reed, Bailey F. Norwood, W. Wyatt Hoback, Angel Riggs, A survey of willingness to consume insects and a measure of college student perceptions of insect consumption using Q methodology, Future Foods,Volume 4, 2021,100046,ISSN 2666-8335, https://doi.org/10.1016/j.fufo.2021.100046.
  3. Jennifer E. Higa, Matthew B. Ruby, Paul Rozin, Americans’ acceptance of black soldier fly larvae as food for themselves, their dogs, and farmed animals, Food Quality and Preference,Volume 90,2021, 104119, ISSN 0950-3293, https://doi.org/10.1016/j.foodqual.2020.104119.

 

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Cat on Baby Scale
This scale does not tip when your cat walks on it. I have added a non-skid mat.

Feeding the older, skinny cat can be a challenge. Older cats do not digest food as efficiently as younger ones and can require more calories. Due to disease and natural aging processes, the older cat often suffers from a reduced appetite. Reduced appetite means that less food is eaten. Less food eaten means the cat will lose weight and muscle mass.

Reduced appetite in the older, skinny cat can be due to:

  • Chronic kidney disease which can cause nausea
  • Pain due to dental disease or arthritis
  • Decreased odor and taste sensitivity (part of the aging process).

How can you get your older, skinny cat to eat better?


  • Offer a palatable food with the appropriate nutrients
  • Feed her in a way that mimics a cat’s natural behavior
  • Use appetite stimulants if necessary

 

palatable, nutritious food


“Senior” Diets

A recent study by researchers at Oregon State, Colorado State, and University of California, Davis found that the only difference between commercially available “senior”diets and the adult diets was that there was higher fiber in the senior diets. So find an adult food your cat likes – preferably one that has been evaluated in a feeding trial.

A therapeutic diet may be recommended by your veterinarian if your cat has kidney disease or another medical condition.

 

“Aging Cats Prefer Warm Food”

Ryan Eyre and colleagues investigated the effect of temperature on how much older cats eat. Thirty-two cats between 8 and 14 years of age participated in a “two bowl” study of a chunks and gravy food at different temperatures.  The food was refrigerated or heated as needed to 43° F , 70 °F and 98 °F.

In a series of trials, each cat was presented with one bowl of colder food and a second bowl of warmer food. The amount of food consumed by the cats was recorded. The researchers also measured 1) thickness of the gravy at the different temperatures and 2) the volatile compounds released when the food was heated.

What they found:

  • There was no change in gravy thickness with temperature, so the texture of the food remained the same.
  • Heating increased the release of volatile compounds associated with a “meaty” flavor
  • Heating decreased the amount of volatile compounds that give rise to scents like orange peel

The cats preferred the warmer food in each of the pairs tested. They overwhelmingly preferred the food heated to 98 °F.

Other reasons cats may like warmed food:

  • The warmest food had a temperature similar to the prey a wild cat would eat – so maybe a little bit of instinct is at work here.
  • Heat is thought to activate taste receptors. Cats are thought to have about 470 taste buds and have taste receptors that detect salt, sour, bitter, and umami (meaty). So, heating food may also make it more palatable to cats by making it taste more “meaty”.

Heat your cat’s food before serving it – make sure to test before feeding. It should be “baby bottle” warm

Feeding your older, skinny cat: mimic natural feeding behavior


  • Feed small meals frequently
  • Use food puzzles to engage the cat in foraging behavior
  • Put food out in different locations
  • Consider elevated feeding stations for arthritic cats
Surefeeder for Cat
Athena’s Surefeeder opens only for her. Note the bubble on the back to keep the other cats out.

Reduce inter-cat stress in multi-cat households

medical intervention – appetite stimulants


  • Mirtazapine: Tetracyclic antidepressant that stimulates appetite in cats.  Mirtazapine comes in pills and a transdermal ointment called mirataz. Mirataz is FDA-approved for cats.
  • Capromorelin stimulates the production of Ghrelin, a hormone your stomach produces and releases. It signals your brain when your stomach is empty and it’s time to eat. Capromorelin (Elura) comes in an oral liquid for once daily administration. It was developed to manage weight loss in cats with Chronic Kidney Disease.

Make sure your old cat eats – fasting longer than 2-3 consecutive days can result in hepatitis lipidosis, which can be fatal if not treated promptly 

Keeping your older, skinny cat well-fed is essential to maintaining a good quality of life for him or her.

Warm canned food

Feed small meals frequently

Talk to your vet about an appetite stimulant if necessary.

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Cat hunting treat ball

Your cat went in for her annual exam and your vet suggests that she lose some weight. Most likely, you were also given some daily calorie estimates and food amounts. Perhaps your vet recommended a weight loss food. What’s next?

Three ways to help your cat lose weight:

  1. portion control
  2. feeding multiple small meals
  3. keeping your cat moving

Portion Control


If you have not done this already, measure how much your cat is eating. Make sure to include treats and table scraps. If your cat is a grazer, put out a measured amount of food in the morning and measure what remains the next morning, 24 hours later.

Gradual weight loss is best. The rule of thumb is to cut your cat’s food portion by no more than 10-20% at a time. Drastic food reduction can lead to a cat who is frantic for food, begging and sometimes biting you in his quest for food. It may take some time to reach the calorie allowance recommended by your vet.

The Behavior of Feeding: Multiple small meals daily


Now that you know how much to feed, let’s look at how you feed. Cats have small stomachs; in the wild, they follow a nocturnal schedule, hunting and feeding about 4 times, starting in the late afternoon and finishing in the morning.  In between hunts, the cats nap and groom; sometimes they play with the kittens.

Your cat is designed to eat multiple small meals a day. If your cat is a grazer, this is what she is doing and she may be fine with her portion set out in a bowl for the day. Other cats may want to eat everything at once, which can lead to GI upset and boredom. To help your cat lose weight, portion control can be done by using a timed feeder or you can follow a feeding schedule. Here is a sample schedule for a working owner feeding 4 meals a day.

  1. AM before leaving for work – meal feed: canned or dry food
  2. Day Time: food puzzles or feeders with dry or canned food
  3. PM arrive home from work – meal feed: canned or dry food
  4. Bedtime Snack: Treat Time – treat toss or training

Strategies for the Multi-Cat Household


Life is rarely simple – often you have one cat who needs to lose weight and a “skinny” one who is a “grazer”.

Technology to the Rescue: Microchip feeders

SureFeed Microchip Pet Feeder:

Surefeeder for Cat
Athena’s Surefeeder opens only for her. Note the bubble on the back to keep the other cats out.

This plain vanilla feeder is ideal for grazers who tend limit themselves. The feeder is programmed to sense an individual cat’s microchip and only opens for the particular cat. Put the “skinny” cat’s food in the Surefeeder and the “fat” cat’s food in a timed feeder or in bowls spread out through the house. The Surefeeder can also accommodate canned food.

 

 

 

Timed Microchip Feeders:

These feeders sense the tag on the pet’s collar and allow a pet a certain amount of time to eat. Many of these feeders can accommodate more than one pet if they are eating the same food. However, some reviews note that a persistent pet will refuse to leave when the doors try to shut, keeping his head in the bowl and continuing to eat.

The Meowspace:

This is a ventilated transparent “box” with an access door. Some models have a microchip flap while others have a magnetic flap. The Meowspace also has a timed access option, allowing the cat to access the “space” only at certain times of the day.

The DIY version: You can make a “meow space” out of a closet by installing a microchip cat flap in the closet door. To add a “timed” option, place an inexpensive automatic feeder in the closet.

Low Tech Solutions to help your cat lose weight:

Some cats prefer to be up high while others are “ground dwellers”. If this is the case, you can feed the cats who climb up high on a shelf, top of a bookcase, or on the upper level of a cat tree while the other cat eats at ground level. Another option is to meal feed and separate the cats in different rooms when feeding.

keeping your cat moving


In the wild, cats prowl around looking for food. You can mimic this behavior by placing portions of food in different places around the house. Your cat has to go look for it. This is the idea behind Doc & Phoebe’s indoor hunting system.

Puzzle feeders also can also stimulate and engage your cat while feeding. Make sure to introduce your cat to his puzzle feeder gradually, increasing the food in the puzzle and decreasing his food in the bowl as he learns to use the puzzle feeder.

Using the indoor hunting system or puzzle feeders can be challenging in the multi-cat home: some cats will catch on more quickly than others, getting more to eat in the process. Indoor hunting and food puzzles may not be appropriate. In that case, help your cat lose weight by engaging him in a daily play session or taking him for a leash walk outside.

Treat Toss
If you are feeding dry food, you can make one of the meals a tossing game. Dental treats or dental kibbles are large and can be tossed for your cats to hunt down. Space the cats out so each cat has his own “territory” to hunt in and make the rounds, tossing the kibbles. This is also a great way for the cats to interact with guests, who usually enjoy tossing the treats to the eager felines!

Help your cat lose weightreduce his risk of medical problems such as diabetes and arthritis, and form a closer relationship with your cat through daily play and exercise activities.

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Cat using food puzzleWhy slide a block aside to uncover food when there is food freely available in a bowl nearby? Psychologists call the behavior “contrafreeloading” – it refers to animals (and people) preferring to work for food when there is freely available food.

This behavior sounds counter-intuitive – after all, you would expect an animal to choose the option that requires the least effort. But psychologists and behaviorists propose that contrafreeloading is a manifestation of the SEEKING system – one of the seven basic emotional systems proposed by Jaak Panksepp, the father of “affective neuroscience”.  Affective neuroscience studies how the brain produces emotional responses.

The SEEKING system is thought to be the strongest of the primary emotional systems. It’s what gets animals out looking for food, looking for a mate, looking for other resources.

When the SEEKING system is activated

  • the brain releases dopamine, a neurotransmitter that makes you feel pleasure.
  • It is the rewarding feeling you get when you are looking for something and find it.
  • Once you’ve found the object of your desire, the brain shuts off the dopamine and other emotions are activated.

So the action of SEEKING can be more enjoyable than finding what you’re looking for. Think about those travel advertisements that tell you that “getting there is half the fun”!

Dogs, mice, rats, birds, monkeys and even humans have been found to engage in “contrafreeloading”.

cats eating from a food puzzle: contrafreeloading?


A recent study by Mikel Delgado and colleagues enrolled 20 domestic cats to observe this behavior. They investigated the behavior of cats eating from a food puzzle versus eating food from a tray.  Cats eating from a food puzzle have to manipulate the puzzle to get the food out.

The cats were first trained to the puzzle by having increasing amounts of their food in the puzzle and decreasing freely available food on a tray.

  • At first, only 25% of their food was in the puzzle.
  • Once they started to eat some food from the puzzle, the amount in the puzzle was increased to 50%, then to 75%.
  • Three cats refused to eat any food from the puzzle and were dismissed from the study.
  • Cats were exposed to the equipment for 4-12 days before testing.

Cats underwent 2-4 trials a day, no less than 2 hours apart. The puzzle and the food tray were placed next to each other, and were the same distance from the cat. The cat’s daily food ration was divided equally between trials. In each trial, the food was divided up equally between the puzzle and the food bowl.

Cats are freeloaders!


Half of the cats ate less than 10% of their food from the puzzle. All of the cats ate most of their food from the tray – no cats were strong “contrafreeloaders”. Eight cats were definitely “freeloaders” – the rest seemed willing to do some contrafreeloading. Although a number of cats approached and sniffed the puzzle first, all the cats ate from the tray first. 

Cats seem to be one of the few species that does not seem to be inclined to work for their food in a captive environment. But cats have been known to STOP EATING to hunt prey – that certainly involves working for food!

why are cats freeloaders?


Cats eating from a food puzzle are engaging in “foraging” behavior.

Cats are solitary predators

  • They must conserve their energy for the energy burst needed when hunting
  • They are not above scavenging a free meal
  • Maybe it makes sense to a cat to eat some of the “free food” first before putting energy into foraging?

Is hunting more “fun”?

  • Is the SEEKING system stronger for cats when they hunt compared to when they forage? 
  • Do their brains release more dopamine when they are stalking, pouncing and chasing?
  • Do their brains release less dopamine when they are foraging?

cats eating from a food puzzle


Does this mean you should not bother offering your cat food puzzles for enrichment? No – food puzzles help reduce boredom and engage cats mentally.  Indoor cats in particular may benefit from using food puzzles.

training your cat to use a food puzzle


  1. Start by offering 25% of the meal in the food puzzle and 75%  in a bowl or tray. 
  2. When your cat is eating some of the food in the puzzle, increase the amount of food in the puzzle to 50% and decrease the amount in the bowl to 50%.
  3. Increase the amount of food in the puzzle to 75%; decrease the amount in the bowl to 25%
  4. When your cat is eating most of his meal in the puzzle, offer him the puzzle only.

A demonstration can help your cat learn. Cats are able to mimic the actions of humans and they are able to adapt human actions to their own bodies.

selecting a food puzzle


Cats using a puzzle feeder
Two cats using the Catit Food Tree.

 

There are many food puzzles you can make or purchase. Start your cat with a “beginner” puzzle and see what he likes to do. My ex-feral cat, Gus, easily mastered the Catit “Food Tree” but it was almost a year or so before he was willing to try a flat panel puzzle where he had to move pieces to uncover the food.

 

 

a homemade food puzzle
Cat using a homemade food puzzle

You may want to make some puzzles first to find out your cat’s preferences before purchasing one. Visit foodpuzzlesforcats.com!

 

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A cat receives an injection of polysulfonated glycosaminoglycans.

It is thought that almost 40% of all cats have clinical signs of arthritis and 90% of cats over age 12 have damage to the joints that you can see on x-rays. Cats are such masters at hiding pain that we are now thinking that arthritis is there earlier, pain is happening and we may not be able to see it on x-rays yet.

What if we could be proactive and start some kind of treatment before our cats even seem painful? Could we slow the deterioration of the joints? What arthritis supplements for cats are available and do they work?

The motivation behind writing this post was to help my youngest cat,  5 year old Gus, who showed some indications of spinal arthritis in his x-rays. Should I begin a supplement with him? I was astounded by the sheer numbers of arthritis supplements for cats on the market and the astounding claims they made.

arthritis supplements for cats – do they work?


Arthritis supplements for cats on the market now range from supplements used by humans to homeopathic remedies. Clinical trials are rare to non-existent on many of these products. This post addresses the more common products and ones that have had some double-blinded clinical studies done.

  • glucosamine/chondroitin,
  • omega fatty acids/ green lipped mussel extract
  • polysulfated glycosaminoglycans

Glucosamine/chondroitin


Glucosamine occurs naturally in cartilage, the flexible connective tissue found throughout the body – for example, in the external ears and the surfaces of joints. The supplement can be made synthetically in the lab or harvested from the shells of shellfish.

Some human studies have shown oral glucosamine may help with pain relief and slowing of joint degeneration in people suffering from osteoarthritis. However, in general, the results from these studies are not conclusive.

Dasuquin is a commercially available formulation of glucosamine/chondroitin for cats. It is a dietary supplement in a capsule that is sprinkled on food. The product has been evaluated for safety.

A recent double-blinded study of Dasuquin enrolled 59 cats with Degenerative Joint Disease.

  • All 59 cats were given a placebo for 2 weeks.
  • Then 29 cats received the supplement for 6 weeks while another 30 continued to receive the placebo.
  • The cats were evaluated by using an at-home accelerometer (like a kitty “fit bit”), owner observations and vet exams through out the study.
  • The study showed a strong placebo effect – 78% of the cats were more active while on the placebo.
  • Cats on the supplement did not show any statistically significant improvement over cats on the placebo.

However, the study did raise some questions:

  • The “kitty fit-bits” showed that the least active cats at the start of the study became more active on the supplement. Were these cat more painful to begin with?
  • The placebo was given in the first two weeks of the study when owner enthusiasm would have understandably been highest and owners would have been looking for improvement.

More research is needed – perhaps a different study design?

Omega Fatty acids (fish oils)


Supplementation with fish oils has shown some benefit for arthritic cats. A double-blinded study showed that cats supplemented with fish oil for 10 weeks were more active, going up and down the stairs more, jumping higher, not walking as stiffly and were more interactive with their people. This study used owner evaluation to assess the cats’ improvement.

Fish oil can be given as a dietary supplement (Welactin) or fed as a therapeutic diet, such as  Hill’s j/d.

Side effects of fatty acid supplementation include GI upset and reduced blood clotting. There is some controversy over how much fish oil is enough. Additionally, fish oil can add quite a bit of calories to your cat’s diet and could result in weight gain, taxing your cat’s joints further.

Merial’s Antinol for Cats supplement is based on fatty acids from green-lipped mussel extract. There are a number of case studies where the supplement has been given to cats with good results for cardiac and dermatological issues, in addition to joint and mobility problems.

Polysulfated Glycosaminoglycans (PSGAGs)


This product is available under the brand name Adequan.  It is the veterinary version of Arteparon, used in humans.

  • Decreases the breakdown in cartilage. The PSGAG’s allows the cartilage to hold more water, making it resistant to degradation.
  • Adequan has been extensively studied in dogs and horses for over 20 years and is FDA-approved for these species
  • Available by prescription.
  • Given by subcutaneous injection in cats with generally good results.

The jury is still out on most of the arthritis supplements for cats. Given at the manufacturer’s recommended dose, these products are safe and may be effective. Considering the individual nature of pain, some cats may respond favorably while others do not. Once again supplements are basically unapproved drugs so there is not the rigorous evaluation that accompanies FDA approval.

Your vet is your best resource on arthritis supplements for cats. He or she will be able to recommend a supplement or diet that is appropriate for your cat and is compatible with other medications or medical conditions your cat may have. In particular, combining supplements should be done with care – glucosamine, fatty acids and Adequan all effect how your cat’s blood clots.

So, what will I do for Gus?


My vets recommended the Adequan injection, citing the robustness of the canine studies and the fact that it is an injection – there is a greater confidence that the cat will get the supplement. We are not depending on him to eat something.

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Cat using food puzzle

At the veterinary clinic where I work, I often hear people say when I ask about their cat’s activity and play, “she sleeps most of the time and meows a lot at night. She doesn’t play – she’s an older cat”. How much of these behaviors is due to “normal” aging? How much is due to other medical conditions or a declining brain?

Cognitive Dysfunction Syndrome in cats or cat dementia refers to the decline in mental abilities associated with aging.

Cat dementia results from damage to the brain.  As your cat ages, the the numbers of molecules called  free radicals are no longer balanced out by the antioxidants in his body. These free radicals are reactive and cross the blood-brain barrier, damaging cells in the brain.

Changes in blood flow to the brain can also cause damage by starving the neurons of oxygen.  High blood pressure, heart disease, anemia – are all conditions that alter the flow of blood to the brain.

How can we tell if our cats are undergoing mental decline? Is there anything we can do about it?

VISHDAAL – behavior changes


Changes in behavior can indicate if your cat’s mental state has declined. The acronym VISHDAAL summarizes the behavior changes we need to monitor in our senior cats, from the most prevalent (vocalizing) to least frequent (changes in learning and memory).

V = vocalization
I = changes in interaction with us and other pets
S = changes in sleep-wake cycle
H = house soiling
D = disorientation
A = changes in activity
A = anxiety
L = learning and memory

How do we sort out behavior changes due to disease and those due to declining mental capacity?

Changes in behavior signal the onset of cognitive decline but they may also arise from other health issues:

  • Cats with untreated high blood pressure or hyperthyroidism may meow at night (vocalizing).
  • Cats with untreated hyperthyroidism may be restless and beg us for food (changes in interactions and sleep).
  • Kidney disease can be accompanied by increased thirst and urination which may result in house soiling (house soiling)
  • Cats with osteoarthritis may have difficulty accessing the litter box (house soiling).

behavior changes: disease vs Dementia


Regular veterinary exams and diagnostics can identify medical conditions such as high blood pressure, hyperthyroidism, and osteoarthritis.  If behavioral changes persist after treating these other medical conditions, your cat may have CDS or cat dementia. 

Cat dementia is a “diagnosis of exclusion” – it is the diagnosis that remains after all the other possible diagnoses have been eliminated. Cat dementia will usually have a slow onset and behavioral symptoms will gradually get worse.

Cognitive Dysfunction (CDS) cannot be cured but management can reduce the symptoms and improve the Quality of Life for both you and your cat.

managing cat dementia


  • environmental enrichment/modification
  • dietary supplements
  • therapeutic diets
  • medication

Environmental enrichment/modification


In the early stages of cat dementia, enrichment increases mental stimulation, leading to the growth and survival of neurons, preserving the thinking processes.  Enrichment should be tailored to the individual cat.  For example, some cats prefer high places; others are “ground dwellers”.  Arthritic cats will not have the range of motion of healthier cats but will still enjoy play that does not require lots of jumping.

Ways to enrich your cat’s environment:

  • play – interactive play and toys
  • scent enrichment – catnip, silvervine
  • food puzzles
  • motion – climbing (cat trees) and exploring (cardboard boxes)
  • supervised outdoor access

As CDS progresses…

Environmental changes become stressful and confusing. Cats with severe cat dementia need an environment that does not change much – daily routines and feeding schedules must be maintained. Litter boxes and feeding stations need to stay in the same place.

A cat with severe CDS may benefit from a “room of his own”, with easy access to his resources. Changes that need to be made must be done slowly. If you need to move a litter box or feeding station, do it gradually over a number of days so the cat can still find it.

Environmental modifications

Modifications to the environment of the cat with dementia should take into account the behavior that she is exhibiting.

  • Cats that constantly beg for food may benefit from a timed feeder at night or treat balls. 
  • Cats with house soiling tendencies may need more litter boxes and ones that are easily accessed, with a lower entry for example. 
  • Cats that become disoriented and confused may benefit from a night light and radio playing soft music.

Dietary Supplements


Dietary supplements in general seek to restore the balance between the activity of antioxidants in the body and the  production of free radicals.  Antioxidants give up electrons to the free radical, effectively “neutralizing” it so that it is no longer reactive. So, these supplements usually contain antioxidants.

SAMe: (S-adenosyl-methionine)  aids in the production of glutathione, an antioxidant. When elderly cats were supplemented with SAMe, there was improvement in cognitive tests. SAMe is best used pro-actively – it is most effective in cats in the early stages of cat dementia.

Proprietary supplements containing vitamins, resveratrol (antioxidant), and fish oils are on the market but there is no clinical data testing cats for these at this time.

other supplements


Melatonin: hormone in the body that is thought to promote sleep. It also has antioxidant properties. Melatonin declines with age.

Pheromones (Feliway), Zylkene, Anxitane (L-theanine) may help reduce anxiety in cats that are disoriented and may promote sleep.

Therapeutic diets


Therapeutic diets containing antioxidants and fish oils have been shown to help cat dementia. 

  • Feline Mature adult Hill’s Pet Nutrition
  • Purina Pro Plan Age 7+
  • Hills prescription diet j/d with fish oil for osteroarthritis

Diets that reduce anxiety may also help with cat dementia

  • RC Calm diets
  • Hill’s urinary support

Medications


Selegiline: licensed to treat dementia in dogs. Like the dietary suplements, it aims to reduce the production of free radicals.  Selegiline stimulates the production of enzymes that eliminate free radicals.

Anxiolytics: Prozac, gabapentin and clonazepam are used to treat dementia by reducing anxiety.

boxes as enrichment for cats
Boxes can be source of enrichment for senior cats.

If you feel there has been a significant change in your cat’s behaviors, keep a journal or log and make sure to mention it at her next senior exam. Start the conversation with your vet about cat dementia and how to manage it!

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Cat with a pumpkin

It’s that spooky time of year where black cats and pumpkins are all the rage. But did you know that many cats dine on pumpkin year round? Why add pumpkin to your cat’s diet? Does it work?

pumpkin and cats


Pumpkin is a popular way to add fiber to a cat’s diet. Fiber can be used to manage diarrhea, constipation, diabetes, satiety, and hairballs.
Fresh pumpkin is said to have about 3 g of dietary fiber per cup while canned pumpkin can have up to 7 grams per cup.

What is fiber?


The story about fiber is complex so I will just say that fiber is substances in food that cannot be digested by the enzymes in the small intestines. Fiber arrives in the large intestine undigested and unchanged.

Fiber can be soluble in water or not (insoluble).

 Soluble fibers

  • Some soluble fibers form a gel in the intestines that slows digestion of carbohydrates, keeping blood sugar levels steady.
  • This gel may also block fat that would otherwise be digested.
  • Other soluble fibers ferment in the large intestine, forming the short chain fatty acids (SCFA) that are part of the cross-talk between the intestinal microbiome and the brain.

Insoluble fibers can pass through the GI tract intact and function to “bulk up” stool and help waste move through the gut.

THE TAKEWAY: It important to have the right amount of the right type of fiber.

  • Too much fermentable fiber can result in excess gas and gastrointestinal discomfort.
  • not enough insoluble fiber may result in diarrhea.

Fiber and carnivores


We tend to think of plants when talking about fiber. But our cats are obligate carnivores, meaning they mainly eat meat. Do they need fiber?

“animal fiber”


A wild cat will eat the entire mouse – fur, bone, cartilage, gut content, tendons, ligaments. These indigestible parts act as fiber – bulking up stool and helping waste pass through the intestines. Even the chitin in the wings of that grasshopper can function as fiber. Some of these materials ferment in the large intestine forming SCFA that allow the microbiome in the gut to talk to the brain.

A study looking at “animal fiber” compared a diet of whole rabbits (fur and all) versus supplemented beef for captive cheetahs.  The cheetahs eating the whole rabbits had more SCFA in their stool than those cheetahs eating supplemented beef. The stools of the rabbit-fed cheetahs were also bulkier due to the “animal fiber”.

We don’t feed our cats whole rabbits – plant fiber is more easily sourced so commercial cat food includes these. Research has shown that feeding our cats moderate amounts of fermentable fiber such as beet pulp helps feed the intestinal microbiome without a lot of gas and bulky stool.

“Differences in fiber type and amount likely result in many of the gastrointestinal issues that pet owners see that vary with diet – they can often explain a pet who has poor stool quality on one diet but perfect stool on another. Too much or too little or the wrong mixture of fiber is a much more likely reason for a pet to not do well on a specific diet than a food allergy…” (from Fiber Frustrations, Cummings Veterinary Medical Center at Tufts University)

Back to Pumpkin and cats…


Pumpkin has both soluble and insoluble fiber. One tablespoon of canned pumpkin contains about 0.1 g of soluble fiber and 0.4 g of insoluble fiber. By comparison, 1 teaspoon of metamucil ( psyllium) provides 10 times as much fiber: 2 grams of soluble fiber and 3 grams of soluble fiber.

While pumpkin is safe for most cats, you may have to give a lot of pumpkin to match the level of fiber in say, one of the veterinary therapeutic diets. There are no real guidelines to supplementing fiber in commercial cat diets so talk to your vet if you feel that your cat needs fiber to manage diarrhea, constipation, or hairballs. Your vet can recommend a diet or supplement with the appropriate type and amount of fiber.

If you decide to supplement your cat’s diet with pumpkin, be sure to choose canned pumpkin and not pumpkin pie mix. While pumpkin and cats are a safe combination, the sugar and spices in pumpkin pie mix are not good for your kitty.

The nutritionists at Cummings Veterinary Medical Center (Tufts University) recommend that …“If supplemented, fiber should always be given gradually over a few days to weeks until the stool reaches the desired composition or other desired benefit is reached (or it becomes clear that it is not helping).”

Happy Halloween!Cat posing with pumpkin

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Elevated feeding station for a cat
Athena’s microchip feeder raised up on a platform.

My oldest cat, Athena, is 16 1/2 years old now. She was diagnosed with Chronic Kidney Disease (CKD) and osteoarthritis a few years ago.

Signs of CKD

  • Weight loss
  • Poor appetite
  • Lethargy
  • Increased thirst
  • Increased urination
  • Vomiting

 Kidney disease can result in reduced appetite and weight loss due to underlying nausea. As the kidneys become less efficient, cats drink more and more water to compensate for the reduced filtration, but they just can’t drink enough. One side effect of this draw on the body water by the kidneys can be constipation. And constipation can also result in reduced appetite.

Athena was losing weight, seemed depressed, did not want to eat and was not very active. Her quality of life seemed to be declining.

My vet recommended:

  • a laxative
  • an appetite stimulant

I added the laxative to Athena’s moist cat food. When she ate things were good.

If she did not eat:

she did not get the laxative >>she would become constipated >> she would not eat even with the appetite stimulant.

I felt we were trapped in a downward spiral.

It is important to treat the whole cat when managing an older cat with multiple disorders.

treat the whole cat


medical treatment


In addition to kidney disease, Athena also suffers from arthritis. Having been a fairly active cat who went on daily walks, it was disheartening to see her decline her walk and stay at home. Her gait became stiffer, in spite of a heated bed and daily exercise in the form of play.

So, I wondered, what if the pain due to arthritis was a bigger player than we thought?

What if stiff and painful>>not moving as much>> bowels don’t move as well>> constipation >>drop in appetite?

I asked my vet “What if we treat the arthritis pain?” Athena moved fairly well in the vet clinic but x-rays showed quite a bit of arthritis in one hip and one knee. The vet prescribed gabapentin twice daily for Athena.

dietary changes


To reduce the constipation, Athena needed more fluid and a laxative. I decided to try a hydration supplement, Purina Hydracare, and added the laxative to the Hydracare. Fortunately, she liked the Hydracare so down went the laxative in a little Hydracare!  This way I knew she got the laxative without stressing about her eating her entire meal.

environmental changes


Because her hips are painful, it occurred to me that “maybe crouching down is painful” so I elevated the feeding station. While she eats, she puts weight on her back legs, helping strengthen her back legs, which are most likely weaker from her previous lack of activity.

eureka!


  • Athena has responded well to the gabapentin – it does affect her balance a bit but she has become more active again and we have resumed our daily walks.
  • Increased activity combined with the hydration supplement and laxative seem to have have eliminated the constipation.
  • Athena accepted the elevated feeding station right away – I guess being more comfortable encourages her to eat more.

the takeaway


It is important to “treat the whole cat”. Treating Athena’s arthritis pain seems to have been a game changer. Although reduced appetite and constipation often accompanies kidney disease, reducing the pain of arthritis has balanced this out, increasing mobility and appetite.

She is still an old cat but her quality of life has improved dramatically with these changes.

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Zelda gets a snack from a plastic cup

Feeling “gutsy”? “Butterflies” in your stomach? These are the signs that your brain and your gut are communicating with each other. There is constant “crosstalk” between these two organs.

The tiny microbes that call the gut their home form a community or “microbiome”.  Some of the ways this microbiome communicates with the brain are:

  1. Millions of neurons line the GI tract and signal the brain of changes in the microbiome.
  2. If the brain triggers the release of fight or flight hormones, the movement of the intestines and the content in them changes.
  3. The GI microbiome affects the development of neural systems that control stress.
  4. Gut microbes can affect immune cells in the GI tract. These changes are picked up the neurons in the walls of the GI tract.
  5. Gut microbes produce short chain fatty acids and neurotransmitters that directly affect the brain.

Our cats are also mammals with a similar gut-brain communication. Imbalances in your cat’s GI microbiome can result not only in diarrhea but also can affect mood, anxiety, and conditions such as dermatitis and inflammatory bowel disease (IBD).

How and what we FEED our cats affects the microbiomes in their guts. As we learn more about how the gut talks to the brain, we are finding specific ways to influence these microbiomes through diet. This gives cat owners a low-stress way of managing their cats’ health by feeding them.

probiotics for cats


A microbe is microorganism, usually a bacterium, that causes disease or fermentation. We can influence the GI microbiome through prebiotics, probiotics and synbiotics.

  • Prebiotics refer to indigestible fiber that feeds the “good” (beneficial) bacteria in the GI tract.
  • Probiotics are live bacteria or yeast that are beneficial to the health of the host – human, cat, dog… – who consumes them.
  • Synbiotics refer to the combination of pre- and probiotics – fiber and bacteria/yeast.

The bacteria/yeast can be freeze-dried and packaged as a supplement. The bacteria remain in a “dormant” state until they are exposed to the right conditions of acidity, temperature and water and become active and “live” once more.

DIETARY SUPPLEMENTS FOR YOUR CAT’S GI MICROBIOME


Some of the more common probiotics for cats include Fortiflora and Proviable.

Fortiflora is manufactured by Nestlé-Purina. The supplement contains the bacterium E. faecium SF68 and has been shown to reduce viral and antibiotic-induced diarrhea in cats. A newer version of this supplement, Fortiflora SA, includes the prebiotic psyllium, resulting in an improved resolution of diarrhea. Fortiflora has also been studied with regard to reducing side effects from feline herpes virus.  Fortiflora is available over the counter; Fortiflora SA is available through your veterinarian.

Nutramax Proviable is another powdered synbiotic for cats found to be effective in  resolving feline diarrhea . Proviable contains seven strains of bacteria: E faecium,
Streptococcus (Enterococcus) thermophilus, Lactobacillus acidophilus, L bulgaricus, L casei, Bifidobacterium bifidum, and L plantarum. Proviable is available over the counter.

Another probiotic on the market features the bacterium Bifidobacterium longum, that has been shown to help cats and dogs stay calm. Calming Care is a Purina product available over the counter.

a diet to maintain your cat’s gi biome


Hill’s Pet Nutrition has developed a canned and dry diet for cats designed to maintain a healthy gastrointestinal microbiome. The food incorporates a blend of prebiotics designed to encourage the growth of “good” bacteria in your cat’s intestines.

Research on cats at the Hills Pet Nutrition Center showed that feeding the “biome” diet increased the “good” bacteria and post-biotics – those short chain fatty acids (SCFA) from fiber fermentation. SCFA are thought to regulate processes in the Central Nervous System and ultimately shape behavior and cognitive function.

MORE ABOUT probiotics for cats


A company called Animal Biome offers to tailor the use of probiotics to the individual cat or dog. The company cites problems with the “one size fits all” approach using probiotics to manage the microbiomes. The composition of the your pet’s microbiome is identified using DNA sequencing. Supplement therapies are available to restore your cat’s microbiome balance.
Other companies offering similar services include Nom Nom and MIDOG.

Probiotics provide us with additional ways to manage not only GI upset but possibly anxiety, skin issues and IBD in our cats. More research should identify additional probiotics for cats that target specific conditions.

SHOULD I USE PROBIOTICS/SYNBIOTICS FOR MY CAT?


For an occasional bout of diarrhea, a probiotic such as Proviable or Fortiflora can be effective. If the diarrhea persists or recurs, see your vet.

Prebiotics, probiotics, and synbiotics are dietary supplements and, as such, are not regulated by the Food and Drug Administration (FDA). Many dietary supplements claim to treat medical conditions and are basically unapproved drugs.

a word to the wise…

Stick with the supplements that have some clinical studies supporting their use. The supplements mentioned in this post are used in many veterinary clinics, have substantial amount of research supporting their development, and are safe to use with your cat.

postscript…

I am moving into a new home and I am concerned about how the process of moving will affect The Feline Purrspective team. As things are getting boxed up, some of my cats were more clingy; my ex-feral cat seemed edgy and paced more. I decided to give the Calming Care supplement a try. So far, the kitties do seem calmer after about a week on the supplement, although, maybe they are just getting used to the moving boxes!cat in moving box

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It’s 1:50 am – you know by the red numbers on your alarm clock. That darn cat meows at night and has woken you up once again.Cat and alarm clock

What is happening?
If this is a new pattern, it is time for a vet visit to make sure that there is not a medical cause underlying the nocturnal activity. High blood pressure and hyperthyroidism are two conditions that can contribute to meowing at night. Treating these conditions may solve the tendency toward night-time activity and meowing.

If your cat has had a physical exam recently and has no untreated health issues, there may different things underlying the “feline nocturnes”. In the wild, cats hunt at dusk, nighttime and dawn when their prey, small rodents, are foraging.

Our indoor cats usually adapt well to being active during daylight hours and snoozing at night.
If this is not the case, what can you do to reset your cat’s internal clock?

Perhaps your cat meows at night because he is bored and awake. He may be seeking your attention.

  • Make sure your cat is active during the day. Give him some play sessions during the day;  engage him in foraging behavior with food puzzles.
  • Establish a night time routine. Cats thrive on routine – it lets them know what is going to happen. Pets can be as good as a clock when reminding you for dinner. Let’s come up with a sequence of activities that signal that the household is slowing down and ready for sleep.

Bedtime Routines when your cat meows at night


Play/Treat time: My cats look forward to treats before bed every evening. After dinner and TV, the litter boxes are scooped and then – IT’S TIME.
All 4 cats proceed to the hallway where they take up their stations and wait to have treats tossed to them. After that, it is time to settle down and they each go to their sleeping place and tuck in.

Your cat might enjoy a play session before treats. This session does not have to be long – 10-15 minutes should do the trick. After that – IT’S TIME FOR BED!

Foraging toys: Try leaving some foraging toys (food puzzles) out and turn in. Again, this is a bedtime routine – you put the toys out and you turn in.

You can try closing the bedroom door. Of course, for many cats, if you close a door, this is the place they have to get into and will shake and rattle the door for access.

My Cat meows at night – Does he need a room of his own?


 

You have tried more play during the day and you are putting out food toys at night – still your cat meows at night.

This may be time for some “tough love” – after all, you need your sleep. If you have the space, give your cat a “bedroom” at night. This could be a spare bedroom or walk-in closet, someplace where you can close the door. Put all his resources (litter box, toys, water) in this room. Put a “calming” pheromone diffuser in this room.

When you are ready for bed…

  • Take kitty to his bedroom
  • Give him a snack.
  • Close the door – do not respond to crying at night once the cat is in the room.
  • He will be safe in there until you get him out in the morning.

While this may seem “cruel”, remember that cats are “socially flexible”. They are able to live socially with humans and other animals but do very well on their own. They don’t get “lonely” the same way we do.

to have a quiet night…


 Be sure to give your cat regular, daily playtime and activities. This may be a good time to review how you are feeding your cat – leaving out a food bowl filled all the time is like having a bowl of potato chips out all the time. Feeding can be self-soothing behavior for a bored cat.

3-4 smaller meals gives kitty something to look forward to – you can put one of these meals in his room for the night.

The Takeaway: if your cat meows at night, try giving him something to keep him busy – some extra play during the day and a bedtime routine just might silence the “kitty nocturnes”.

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