Take it one step further and read the label. For example, if you do not see any grains, or “peas,”
“potatoes,” “starch,” or “vegetables” on the label, even if it is listed as 10% carbs, chances are that it is
much lower. Keep in mind that liver does have some carbohydrates since it is the organ that stores
sugar for the body. That said, I DO want liver in the product since it is a wonderful source of nutrients
and it is far better to get our vitamins and minerals from **whole foods** rather than from a bottle
containing vitamins that were synthesized in a laboratory.
“Indoor,” “Weight Management,” and “Light” are all used to describe diets that are usually high in
carbohydrates. The goal of these diets is to make them less calorically-dense. Since 1 gram of a
protein and carb = 4 calories and 1 gram of fat = 9 calories, these diets are low in fat. Keep in mind the
“three-way tetter totter” discussed above in the Composition section. If one fraction (in this case, the
fat) is lowered, either one or both of the other two fractions must be increased. In this case, the pet
food companies *should* raise the protein when the fat is lowered but that would cut into their profit
margin so, instead, they increase the carbs which is a cheaper source of calories.
Biological value of protein: Animal-based protein has a much higher biological value when compared
to plant-based protein. Grains supply both protein and carbohydrate. Therefore, high carb diets often
have much of their protein coming from plants. Consider not only the amount of protein in a diet but
also the source of the protein. Diets using whole grains or glutens (gluten = plant-based protein) have
a portion of their protein coming from low biological value sources. See catinfo.org - Feeding Your
Cat: Know the Basics of Feline Nutrition for a discussion of biological value as it pertains to obligate
carnivores.
Protein source: How do we know how much of the protein is coming from animals versus plants
when an ingredient list includes both animal and plant (grains/potatoes/vegetables) protein sources?
The answer is, we don’t know but we need to be aware of the ‘ingredient splitting’ issue. Ingredients
are listed in descending order by weight. Consider this ingredient list: “Chicken, brewers rice, corn
gluten meal, whole grain corn, wheat gluten.”
Consumers often focus on the fact that “chicken” is the frst ingredient but when the grain fractions are
added together, their contribution to the diet is greater than the meat. Meat is also higher in water than
grains making it less protein-dense. This compounds the problem of grains contributing more to the
protein level than the animal sources. This type of ingredient list does not represent an optimal
carnivore diet. Meat ‘meals’ are a more concentrated source of protein but they are also very heavily
processed which results in nutrient loss.
Liver: I definitely want to see liver in the product since it is a wonderful source of nutrients (vitamin A
and D, copper, zinc, etc.,) and it is far better to get our vitamins and minerals from *whole foods*
rather than from a bottle containing vitamins that were synthesized in a laboratory. That said, not every
meal has to contain liver but I like to see some liver fed several times/week.
CAT FOOD - NUTRITIONAL COMPOSITION
Data compiled by Lisa A. Pierson, DVM
Typical nutrient analysis data provided by the respective companies
Wet only - no dry food is listed
2017
CALORIES per
5.5 oz unless
otherwise
noted
2 Sortable Charts:
1) Google Drive
(2 tabs - Data and Notes)
2) Extensive filters
The print version above has
many blank areas because
I am waiting for data to
come in. I will be adding to
it over time.