CanidaePure Treat Biscuits - Lamb Liver & Butternut Squash

Organ meat from the named animal, or unnamed when the label just says liver. Liver is one of the most nutrient-dense foods there is, rich in vitamin A, copper, iron and the B group, and most pets love the taste, which is why it is used both as an ingredient and as a flavor coating. For allergies, the species is what matters, and beef liver is beef. Unnamed liver can come from any species and may vary by batch.

A root vegetable used as a carbohydrate source, especially in grain-free foods. It supplies energy, fiber and beta carotene and is well digested by dogs. There is no good evidence it beats rice or oats nutritionally, though it is a reasonable choice for pets that do poorly on grains. Like any starch, a food that lists it high is a starch-heavy food.

A plant oil, low in saturated fat, added as a source of the omega-6 fat linoleic acid with some plant omega-3 as well. It is inexpensive and stable. The plant omega-3 in canola is not converted efficiently to the forms pets use, so it does not replace fish oil. Canola is often genetically modified, which some owners prefer to avoid; there is no evidence that matters for the pet.

A spice added for color and for its curcumin, a compound studied for anti-inflammatory effects. In people and lab animals curcumin is poorly absorbed unless paired with black pepper or fat, and the amounts in a pet food are far below those used in supplement studies. It is safe and gives kibble a warm color, which is most of what it is doing here; the joint and anti-inflammatory claims rest on doses far higher than a food provides.