MerrickPurrfect Bistro Bolognese Cat Food Topper Wet Treat

A red-meat protein, higher in fat and iron than poultry. Fresh or deboned beef is mostly water and ranks higher on the label than its dry contribution; beef meal is the concentrated form. Beef is among the most common food allergens reported in both dogs and cats, probably because it has been fed so widely for so long. Beef by-products such as liver and heart are listed separately.

Starch from the cassava root, used to bind kibble and as a carbohydrate source, especially in grain-free foods. It is nearly pure starch with little protein, fiber or micronutrients, and it is one of the least likely ingredients to trigger an allergy. A food that leans on tapioca for carbohydrate is getting easy digestibility and little else from it, which is fine as long as the rest of the recipe carries the nutrition.

Usually tomato pomace, the skins, pulp and seeds left after juicing, added as a fiber source with some antioxidants. Ripe tomato is safe for pets; the green parts of the plant, which are not used in pet food, contain compounds that are toxic in quantity. Pomace is an inexpensive and reasonably good fiber, and that is all it is doing here.

A vegetable that contributes a little fiber and beta-carotene and a lot of label appeal. In dry food it is usually present in small amounts well down the list. It is not an allergen of concern and not a meaningful protein or calorie source. Fine to see; not a reason to choose one food over another.

The dried cells of yeast, often a by-product of brewing. It is rich in B vitamins, protein and minerals, improves flavor, and contains compounds that may support gut bacteria. Despite a persistent myth, there is no evidence it repels fleas. Yeast is an uncommon allergen in pets. Yeast culture is a slightly different product, a fermented feed that supplies similar nutrients.

A culinary herb added in tiny amounts, usually with a claim about fresh breath. Parsley does contain chlorophyll and some vitamins, but there is no evidence that the fraction of a percent in a pet food changes breath or anything else. It is safe at these levels. It appears on some toxic-plant lists because very large amounts can cause light sensitivity; the pinch in a pet food is nowhere near that.