Tag Archives: cat food ingredients to avoid

Quality Cat Food: Wet & Dry

As some of you might know, my S.O. and I adopted a 7 month-old kitty on Christmas Eve. Being a new kitty mommy, I didn’t realize that a lot of care goes into selecting the type of food you feed your cat (there truly is a lot of horrible products out there). Thanks to the wonders of the internet, however, I was able to find very useful resources pointing me in the proper direction. I will site these resources at the end of my post for your convenience. Before then, I will describe what to look for and what to avoid when purchasing cat food. I hope this post will be useful for prospective kitty mommies and daddies.


Ideally, we should be feeding our cats wet food as cats acquire most of their water from the food they eat. In addition, having descended from desert wild cats, domestic cats also have a very low thirst drive. The combination of a low thirst drive and a diet of purely dry food results in a cat that may develop problems including, but not limited to: dehydration, urinary tract infection, kidney stones, cystitsis, and struvite crystals.[1]

However, we don’t live in an ideal world, and dry food is quite convenient for our busy everyday lives. The best thing you can do for your cat in this scenario is to compromise: provide a mixed diet of both wet and dry.

After convincing my S.O. to regularly provide our cat with wet food, we decided to feed our cat 1/2 a can of 5.5oz wet cat food in the evening and 2/3 a cup of dry food during the day. We did this based on the serving directions indicated on the dry cat food bag. Your serving quantities might vary based on your cat’s age and weight.


When looking at the ingredient list on the back of a can or bag of cat food, pay particular attention to the first 5 ingredients in the list. These ingredients comprise the majority of what the food is made of as the order of the ingredient list is based on weight.


In both dry and wet food, there are certain ingredients to watch out for and avoid like the plague. The reason these ingredients are even used is because they are cheap and increase a pet food company’s profit margin. Ingredients to avoid include:

CORN – Cats are obligate carnivores and can’t process carbohydrates the way we do. Grains, in particular, corn, are terrible for their health. Corn and other grains are the leading cause of overweight, obese, and diabetic cats (corn is naturally high in sugar). In addition, since corn is not a sufficient source of protein, your cat will eat even more of the food because it feels malnourished. This can lead to unwanted eating habits such as gorging and vomiting. If corn or anything corn based (i.e. corn gluten meal) is listed as one of the first 5 ingredients of the cat food, that cat food is garbage for your cat’s health. Consumers are catching onto this, and pet food companies have responded by listing corn as “maize.” [1]

ANY TYPE OF GRAIN – This may include brown rice, cracked barley, and oatmeal, which are higher quality grains than corn, but still not great since cats shouldn’t be eating grain at all.

BREWERS RICE/ BREWERS YEAST – Another useless additive. As the name implies, these ingredients are used to process beer which are later dried and sold to pet food companies as a cheap source of carbohydrates.

MEAT BY- PRODUCTS / MEAT BY-PRODUCT MEAL – Parts of slaughtered animals not including meat. This includes organs such as kidneys, intestines, brains, bones, etc. Under this definition, meat by-products are not necessarily bad for your cat, but the problem is you don’t know what the source of the meat by-product is. It is in fact legal for meat by-products to contain, quote: “4D animals (dead, dying, diseased, down), road kill, euthanized cats and dogs, including their collars. These source products are rendered, the fat is siphoned off to be used as “animal fat,” and the remaining material is extruded to form “meat by-product meal.” [2]

If the meat by-product is described as a meal, this means that the by-products were ground and rendered (cooked under high heat and reconstituted).

POULTRY BY-PRODUCTS / POULTRY BY-PRODUCT MEAL – Same definition as meat by-products, except using poultry. It may include the use of feathers, beaks, and feet.

ANIMAL DIGEST – Similar to meat by-products, except that it may include refuse from restaurants and supermarkets.[2] It’s a poor source of protein.


CHICKEN or CHICKEN DEBONED- Chicken meat from muscle meat.

TURKEY or TURKEY DEBONED – Turkey meat from muscle meat.

DUCK or DUCK DEBONED – Duck meat from muscle meat.

RABBIT or RABBIT DEBONED – Rabbit meat from muscle meat.

CHICKEN MEAL – Ground and rendered chicken meat; not as nutritious as chicken deboned, but still quite good.

TURKEY MEAL – Ground and rendered turkey meat.

SALMON OIL and/or FLAXSEED OIL – Good for your cats fur (shiny and soft coat) and eyes (bright and clear).

CRANBERRIES, ACAI BERRIES, or BLUEBERRIES – Good source of antioxidants; good for maintaining your cat’s urinary tract system. Should be listed after the top 5 ingredients.

TAURINE – May be listed as a supplement. This is critical to your cats overall health. If the ingredient list is full of good proteins, it may not be listed as the taurine comes from the protein.


According to veterinarian and cat foster mother, Dr. Lisa A. Pierson, DVM, a cat’s diet should be composed of:

  • Protein calories = 50 – 70%
  • Fat calories = 10 – 30%
  • Carbohydrate calories = <5%

To calculate these figures after looking at the Guaranteed Analysis of your cat food, please refer to Dr. Pierson’s formulas located here:


Unfortunately, a lot of the most popular pet food brands on the market are also the brands with the worst ingredients lists. My list is by no means thorough, but I am cherry-picking the ones that claim to be a superior food and/or what most consumers go for.

A particular brand I am actually disgusted with is…


What I hate about Science Diet is that it touts itself as being a “scientific diet recommended by veterinarians” when the ingredient list says otherwise. Here are the first five ingredients of Hill’s Science Diet Mature Adult Indoor cat food:

Chicken By-Product Meal, Corn Gluten Meal, Brewers Rice, Ground Whole Grain Corn, Animal Fat (preserved mixed tocopherols and citric acid).

By-product meal. Okay… at least it’s not animal digest. Wait… Corn gluten meal is the SECOND ingredient? Ground whole grain corn is the THIRD? Brewer’s rice?! Awful, awful food! It’s one thing if this is a grocery brand food, but Hill’s Science Diet isn’t cheap and is frequently recommended by actual vets. Why? Well, it turns out Hill’s Science Diet (which was purchased by Colgate in the 1970s) has given bucket-loads of money to veterinary schools and hospitals in exchange for having their brand featured in textbooks and presentations, and recommended by licensed vets. Sometimes they even have vet offices give away bags for free as a promotion. The company has certainly done a lot to effectively market their brand, and we the consumer have been none the wiser that we’ve been had. I hate this brand. Well-meaning people think they’re paying for the best, when in fact they might as well be buying Meow Mix. At least Meow Mix doesn’t pretend to be a superior food.

To further illustrate why this brand angers me, please take a look at the consumer complaints written about Science Diet here:

And here:


Like Science Diet, these claim to be a superior food. Sadly, these brands actually are “superior” to Science Diet because they actually list chicken as the first ingredient. Chicken by-product meal is also listed, but at least it isn’t listed first.

Consumer complains about the above brands are located here:


First ingredient is corn. Second ingredient is corn meal. Nothing to see here.



I currently feed this to my cat as part of her dry diet. The first 5 ingredients include:

Deboned Turkey, Deboned Chicken, Chicken Meal, Whitefish Meal, Potatoes

Interestingly, Wellness CORE offers more protein by percentage than Wellness canned cat food [1] (more on this later). Note that further along the ingredient list, there are phosphorous and magnesium. In high quantities, these can cause struvite crystals [4], so it’s important to make sure your cat gets plenty of water and a portion of wet food. It’s not cheap, so I buy the smaller bag for $10.00 and mix it with…


The first 5 ingredients include:

Chicken deboned, Chicken Meal, Potato Dehydrated, Turkey Meal, Chicken Fat (preserved with mixed tocopherols – a source of Natural Vitamin E)

Unlike Wellness CORE, this doesn’t have phosphorous, which is good since I’m blending the two brands. There is a carb listed as a main ingredient (potato), but at least it’s not a grain. Being a dry food, having some kind of carbohydrate is inevitable.


A very good food from Canada. It’s actually pricier than Wellness CORE and is imported from Canada. The first 5 ingredients include:

Deboned chicken, chicken meal, turkey meal, russet potato, lake whitefish


Good, but rather pricey. The first 5 ingredients include:

Turkey, chicken meal, chicken, herring meal, chicken fat


What I like about this brand is that it offers cat food in three forms: raw, dry, and canned. I also like that they offer rabbit as a main protein, which is nice for variety and something a cat could feasibly hunt in the wild. The first 5 ingredients include:

Rabbit Meal, Chicken Meal, Salmon Meal, Herring Meal, Tapioca


Here’s the problem with grain free, by-product free wet food: inevitably, the company needs to cut a corner to make money. Since grain and by-products are out of the picture, the pet food company will instead load their wet food with fat. Wellness, a reputable brand, is guilty of this.[6] For a thorough breakdown of protein to fat to carb percentages based on brand name and formula, please visit:

Fortunately, cats metabolize fat better than they do carbohydrates. My concern, however, is that over time my cat may develop heart problems. Since she’s still technically a kitten, the high fat content is actually good for her for now. As a precaution, I mix Wellness canned chicken or turkey with Merrick Before Grain canned chicken, chicken and quail, or turkey, OR Merrick “Grammy’s Pot Pie” or “Cowboy Cookout.” The Before Grain canned food is more bland (Cici always eats the Wellness portion first), and the gourmet Merrick canned food is comparatively lower in fat and carbs. In fact, “Grammy’s Pot Pie” and “Cowboy Cookout” are two formulas that closely match a cat’s ideal protein to fat to carb ratio. I hope mixing the brands will cut the fat in Wellness by a little bit. It’s probably a lost cause, but it’s a small comfort to know I’m trying.

As for wet food with no grains, but with meat by-products, it’s honestly a toss up. When we first adopted Cici, she was initially on a diet of Before Grain Chicken Dry and Fancy Feast wet food (which uses by-products). While she loved the taste of Fancy Feast, she would suffer diarrhea and/or very foul stool that would stink-up the whole apartment. Once I weaned her off Fancy Feast and got her on Wellness, the diarrhea stopped and her stool (though still stinky) didn’t stuff up the whole apartment. If your cat reacts well to Fancy Feast, I think it’s a reasonable compromise as it’s low in price, low in fat, and zero in grain (check the ingredient list) though high in by-products.


Cats actually have a tendency to develop food allergies to fish and beef (or any animal with hooves). I try to avoid formulas that use fish or beef as their main ingredients (supplemental ingredients should be fine). Otherwise, I mix these formulas (i.e. “Cowboy Cookout”) with one that is predominately made of fowl.


Currently, I use one vitamin supplement and one digestive aid for hairballs. The vitamin supplement I use is Pet Naturals of Vermont: Daily Best Chews (not the tablet). Since Cici is not yet 1 year old, I only feed her one chew a day. The nice thing is that Cici thinks this vitamin supplement is a treat. Every morning, she follows me to the kitchen and gently paws at my legs when she sees me holding the Daily Best bag. The formula does contain brewers yeast, but since this is a supplement and not a food, it’s not that bad.

The digestive aid I use for hairballs is Petromalt Hairball Chews. I give Cici four chews once a week, which will increase to twice a week once she becomes one. Since I’ve only had Cici for a month and a half, it’s too soon to tell if this formula is working. However, I’m pleased to note that before I bought this digestive aid, Cici would hack a lot. Once I got her on this, the hacking decreased significantly, and I was happy to find wads of fur in her stool instead of in a hairball surrounded by vomit. Fingers crossed it stays that way. This formula also contains brewer’s yeast, but again, since it’s not a food, I’ll forgive it. Lastly, the chews are a bit hard. I have to crush the chews with my fingers so Cici has an easier time gobbling them up.

I tried Greenies Dental Care Treats for a while. Unfortunately, it gave my cat the runs and turned her stool green. Once I took her off it, her stool returned to normal consistency and color. I won’t be buying this again.


I hope this blog entry has been helpful for kitty mommies and daddies out there. I owe many thanks to the resources I found online, particularly While I don’t have the time and resources to provide my cat with a homemade raw food or a purely canned food diet, the information on was very enlightening.

Thank you for reading!










Posted by on February 8, 2012 in Cat Care, cat food, Cats


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