How much do you need, and where should you get it? See how much you really know about this essential nutrient with our quiz. By Alice Callahan Illustrations by Sophia Pappas Nov. 16, 2023 It’s the ...

First, the good news: We did not find widespread or dangerous problems in the samples of dog food that we tested. But our findings did make it clear that not all dog food is made equal. While most ...