Health & WellbeingI'm taking a pet nutrition course. And I'm so very confused. It says that corn, meat meal & grains are good, but I thought corn was bad? Don't some food have fillers? I work at a vet clinic and the vet there said Merrick is bad and purina is good? Bu
Hello! All great questions and comments - and you're right, there's a lot of conflicting information out there regarding food. Some of the information you're going to find is based on personal preference or a value bias. Corn is a good source of digestible carbs, fatty acids, and protein - but these things are better digested in dogs than in cats (who are obligate carnivores), and some people prefer to minimize grains, so those people might state corn is "bad".... in my opinion, the focus on grains is based more on trends in human nutrition than evidence-based pet nutrition. Statements regarding what pet foods are "good" vs "bad" will also come from personal preference...your vet can probably explain what made them state that Purina is better than Merrick, and another vet might have their own input on the matter. I do personally like both Purina and Hills because I find their products consistent, reliable, and I like that those companies put a lot of their profits back into nutrit
Updated on September 24th, 2025