In this video, growing interest in vegan and vegetarian (veg*n) diets for dogs and cats is discussed, driven by factors such as pet health, environmental sustainability, and farmed animal welfare. It is emphasized that such diets must be carefully designed and manufactured to be nutritionally sound, with digestibility being a key factor. The claim that dogs and cats cannot effectively digest and utilize plant-based proteins is evaluated by analyzing thirty-one studies—twenty-two on dogs, two on cats, and seven applicable to both species. Across diverse study designs, populations, digestibility metrics, ingredients, and processing methods, this video shows that digestibility values for veg*n diets are consistently high and broadly comparable to those of conventional meat-based diets. In all five studies assessing apparent total tract digestibility (ATTD) of veg*n pet diets, values exceeded 80% for dry matter, 85% for organic matter, 80% for crude protein, 89% for fat, 88% for nitrogen-free extract, and 86% for energy. This video also highlights that individual vegan protein sources—such as those from legumes (including soy-derived ingredients), pulses, grains, and microbial fermentation—can be well digested by dogs and/or cats. While some discrepancies exist regarding whether these ingredients are more, less, or equally digestible compared to animal-based alternatives, this video notes that even in studies where lower digestibility of specific nutrients was observed, overall digestibility remained high. These findings support the use of nutritionally sound veg*n pet diets, which, as this video concludes, are not normally significantly less digestible than conventional meat-based diets.