Best High Fiber Cat Food 2018 – Reviews & Buyer’s Guide (Nov. 2018)

Every human being knows that quality and versatile nutrition makes up half the health. Our cats, however, don’t have that level of consciousness. Even if they are experiencing some nutritional problems, they’ll simply keep on consuming whatever Mother Nature put on their species’ evolutionary table. That is why it is our responsibility to right these wrongs and bring some diversity into their bowls. Here’s a short guide that should help you to choose the best high fiber cat food on the market.

Things You Should Know Before Buying High Fiber Cat Food​


If you’re wondering why something as simple as cat food required such a cautious introduction, the answer is simple. Our cats are carnivores. Their natural prey – rodents and rats – contain only up to 0,55% fiber, and, believe us, this situation is not accidental. Cats’ feline bodies are never meant to digest fiber in the first place. In order to do so, they first need to ferment it. Consequently, if you feed your cat with too much non-fermentable fiber, you can cause your pet serious health issues.

However, there are some instances when feeding your cat with high-fiber food makes a lot of sense.

  • Your cat needs a diet – The slowly fermenting fiber takes longer to digest than the regular cat food. If you feed your cat with the food that is high in fiber and low in calories, you cat will be “full” for the prolonged periods of time, so it won’t feel the need to consume any more food and consequentially, lose some weight.
  • Your cat is experiencing diarrhea or constipation – Both these issues are fairly common, so there is a good chance that you’ll need to subject your pet to high-fiber diet sooner than later. But how this whole thing works? Well, as we already mentioned, when consumed fibers tend to slow digestion and add bulk to the stool. They also attract body water and form a gel. These properties help fiber to fight both diarrhea and constipation and regulate what we know as “normal bowel movement.”
  • Your cat is suffering from diabetes – The food that features a lot of fiber can slow the absorption of fat and glucose, meaning that the cat won’t experience glycemic spikes in blood glucose levels immediately after eating food containing fats and sugar.

So, the benefits are obvious, but how to find out is the food you are asking you cat to consume actually good for your pet? Well, there are a couple of things you should pay attention to.



As we mentioned earlier, to digest fiber, cats first need to ferment it. That is why you should strongly avoid feeding your cat with non-fermentable fibers. Of course, such notions are not always obvious on the first glance, so we’ll give you a short list of preferable and stay away from ingredients.


  • Oat fiber
  • Psyllium
  • Seed Husk
  • Rice Bran
  • Dried Potatoes

Stay Away From

  • Wheat Gluten
  • Powdered Cellulose
  • Whole Grain Corn
  • Whole Grain Wheat
  • Corn Gluten Meal

The Amount Of Fiber


Even if you are going to subject your pet to a fiber-high diet, you need to know that you can’t simply rely on this important nutrient to keep your cat going. As a matter of fact, even the cat meals that are considered high in fiber, contain this nutrient in very small amounts. So, don’t be fooled into thinking that more fiber amounts to better results. You cat’s meal should contain only up to 3-5 percent of fiber.

Additional Vitamins And Nutrients​


The high-fiber cat food is primarily meant for fighting diabetes, and diarrhea and helping your cat lose some weight. However, that doesn’t mean that fiber-rich food has to be only about that. On the contrary, the inclusion of valuable vitamins and nutrients in the whole package can only help your cat to improve health and overcome some problems that can come off as a result of this particular type of diet.



The main factor that should guide your decision in this regard should be the time frame in which you’re going to use the cat food. If your cat is suffering from diabetes, you should definitely think long-term and look for a product that will provide the biggest bang for the buck. On the other hand, if your cat is suffering from temporary constipation or slowly turning into Garfield you can allow yourself the luxury of buying a premium product that will provide the best possible short-term results.



Fiber-high meals were never meant to be cats’ go-to food choice. That is why finding the food that features interesting flavor, and, as a result, can help your cat make fiber a part of its nutrition was never a bad idea.

And now, let’s take a look at some of the best-rated products on the market and see how they fare in regards to the standards we discussed above.

Top 5 High Fiber Cat Food

Natural Balance Limited Ingredient Diets Dry Cat Food For Indoor Cats, Salmon & Chickpea (1 Pack), 10 Lb

Natural Balance is certainly one of the most well-regarded manufacturers of cat food. Ever since the company was founded in 1989, the brand was always marketed as the refined line of products with the premium quality. “Food for a lifetime” if you insist. Of course, it’s not hard to imagine that such premium products wouldn’t be for everyone’s pocket. Surprisingly, Natural Balance Limited Ingredient Dry Cat Food is a package that comes at a bargain price.

So, what’s the catch? Well, nothing too drastic, but there are a couple of things worth mentioning nevertheless. First, the very package (the bag you get the food in) is not that great. Some users even reported that, due to this problem, their food caught mold. We will count this as a try to cut the price of the package down. Also, the flavor is very rich and can turn down some pickier kittens.

Otherwise, there is not too much to be said about. The main ingredient is salmon which is great. Not only it will satisfy your cat’s nutritional needs for protein, balanced Omega 6 and Omega 3 fatty acids will also make sure the kitty maintains a shiny coat and healthy skin. The overall formula obviously aims at the lean and healthy look, and if you don’t let your cat indulge in the food for too much, it will end up with exactly that.

What We Like

  • Great value for the money.
  • The presence of salmon as the main ingredient is excellent.
  • Probiotic fiber ensures healthy digestion.

What We Don’t Like

  • The package is not that good.
  • Due to very strong and distinct taste, a lot of kitties will simply ignore the food altogether.

Royal Canin Veterinary Diet Gastrointestinal Fiber Response Dry Cat Food 8.8 lb

Royal Canin is yet another brand that has a very long tradition and flawless reputation. This time, however, the company was founded by veterinarians, whose main goal was to make the pet food that will be rooted in science. These aspirations were maintained to this very date, so it’s no wonder that we are talking about the product that delivers some rather impressive results.

For a start, this product is a lot more than a simple high fiber pile of food. The package also includes a wide variety of probiotics and oligosaccharides intended to improve your cat’s intestinal health and restore intestinal flora. The choice of protein is excellent as well. They are easily digestible and won’t put too much strain on cat’s digestive system. The food is suitable even for cats with severe liver failure. The most importantly – this formula actually works, and it works more than well. Even the cats who have been constipated for more than a month can experience a great deal of relief after only 3-5 days of eating this food.

Of course, the package is not without its flaws. One of the most glaring issues we noticed is that, for food that was created or at least approved by professional veterinarians, the whole package contains too much filler. All these nutrients are not that harmful as much as they’re unnecessary. The other thing we would like to point out is the price. For the lack of better description, it’s outrageous.

What We Like

  • It’s always nice to find the product that delivers on the promise it makes.
  • Tasty and suitable for all cats.
  • The product that isn’t afraid to step out of its regular playing field.

What We Don’t Like

  • Not for everyone’s pocket.
  • Too much filler nutrients for our taste.

Stewart Fiber Formula Cat Treats - 2.1 oz - Case of 12 Pouches

And now, it’s time for a pleasant trip down the price ladder. Not too close to Natural Balance’s contender, but far enough from Royal Canine’s food to make this product a very worthwhile consideration. This time, though, the whole package is divided into twelve pouches, which will immediately put a lot of cat-owners off. Why? This kind of packaging mandates the volume and number of available meals. Some cat owners (especially the experienced ones) prefer more freedom in this regard.

But, the freedom to influence the volume of your pet’s meals (or the lack of it) is not the only thing that raises some concerns. The other controversial thing that comes off as a natural result of this type of packaging is that, because the very food is very crunchy and fragile, more often than not you’ll notice that a huge portion of each pouch has evaporated into crumbs and dust

Finally, the explicit and detailed description of the nutrients used in the package is nowhere to be found. With the things as they are, we can only judge this product by its performance, and fortunately enough, the performance is fine. As a matter of fact, Stewart Fiber Formula Cat Treats are doing above the average job in fighting constipation. Still, we would like to know what exactly we are feeding our cats with.

What We Like

  • Well-balanced price.
  • The treats taste great, and cats accept them as a part of their nutrition very fast.
  • The product offers a very solid performance.

What We Don’t Like

  • A huge portion of every meal will go to waste, and you can do nothing about it.
  • The product has too much gray areas to be comfortably used.

Raw Paws Pet Organic Pure Pumpkin for Dogs & Cats, Powder - Fiber for Dogs - Cat & Dog Digestive Supplement for Healthy Stool, Regularity, Dog Gas Relief & Anti Scoot - Cat & Dog Diarrhea Relief

If you pay close attention to virtually any roundup review you can find on the web, you’ll see that almost always there’s at least one oddball hiding amongst the other contenders. What makes this oddball an oddball is that, though it can stand toe to toe with other contenders in some regards, the oddball plays entirely in its own league. Raw Paws’ Digestive Supplement is, without any doubt, this list’s oddball. But what makes it such?

To put it in the simplest possible manner, this product is not exactly a food, but more of a dietary supplement in the form of powder. Of course, you can always mix it with water and try to feed your cats with it, but it works the best when mixed with some delicious meal. And now that we’ve moved this off the table, the question remains, is the product any good?

Yes. Yes, it is. The powder is made out of pumpkin seed which is known to be very rich in vitamin A, various antioxidants, beta-carotene, and, as you can probably guess, soluble fiber. This generous combination promotes healthy and natural stool. Another great thing about the product is the package. The zip-lock bag will keep the powder fresh and prevent any kind of spoilage.

All in all, you’ll find it very hard to keep your cat full with the powder alone. But, its price is more than lucrative, so you can lose very little by trying to find some way to incorporate it in your cat’s current nutrition.

What We Like

  • Healthy and affordable.
  • Some other products on the list would definitely benefit from this type of package.
  • 100% natural powder produced in the USA.

What We Don’t Like

  • This product is a supplement so it can serve only as an addition to your cat’s nutrition.

Instinct Raw Boost Healthy Weight Grain Free Recipe With Real Chicken Natural Dry Cat Food By Nature'S Variety, 10 Lb. Bag

And finally, we have a product that features pretty impressive 5,5% of the fiber in its well-designed and good-looking package. That alone would make it a very capable fiber-centric product if only the spotlight wasn’t turned into completely different direction. Namely, this package is almost exclusively aimed at keeping your cat healthy by maintaining its weight.

Don’t get us wrong, the fiber is still there, and it's performing its duty more than sufficiently. As a matter of fact, the choice of ingredients you get the fiber from is really good – potato, soy, grain, and wheat are nowhere to be found.

Pack that with the very healthy and minimally processed bites of real chicken and the inclusion of L-carnitine which is meant to burn calories and improves metabolism, and you’ll get the meal that will turn your lazy fat cat into lean, mean household beast worth sharing the same ancestry with tigers and panthers.

But, we already mentioned that weight-loss is only one of the reasons why you should feed your cat with fiber in the first place. If your cat is gaining weight uncontrollably, you’ll hardly find a better product to keep it slim.

However, if your favorite pet is suffering from diarrhea or constipation, you can find a lot of products that will address these issues more gracefully at this price point.

What We Like

  • A highly specialized product worthy of your money.
  • Well-balanced price.
  • The choice of the nutrients in the package is well-thought out.

What We Don’t Like

  • Limited application.
  • Barely processed food is always a double-edged sword.

The Best High Fiber Cat Food

And now, it’s time for a roundup. This time, finding the best product is surprisingly difficult. The entries couldn’t be more different from each other. That is why we’ll resort to the good old elimination method. Let us start by writing off Stewart Fiber Formula Cat Treats and Raw Paws Pet All-Natural Pumpkin Powder. The first one is plagued with too many issues. The second one is great but can’t compete in all relevant areas. At least not on this list.

The next high-fiber food that needs to leave the race is Royal Canin Dry Cat Food. Excellent product, that is simply too expensive for a regular pocket. As you can guess, out of the two remaining products Natural Balance Limited Ingredient Dry Cat Food gets obvious, but not that drastic advantage.

Granted, if you want to keep your cat lean and healthy, you won’t find a better product than Nature's Variety Instinct Raw Boost Grain Free Recipe. However, it is very hard to ignore the fact that Natural Balance’s package is very affordable, high-performing and simply more versatile. More than enough to earn it a number one spot.

Sarah Keene

I’m Sarah Keene, and I’m glad you found your way to my blog. I love cats so much; I consider myself a cat woman. I have 5 cats at the moment, and I am planning to grow my cat family. It is not easy to take care of these cats appropriately though I would wish to make them feel as comfortable as possible. This is why I depend on other blogging cat lovers like me to help me in providing all the necessities for my cats to have the best life possible.

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