Why do humans need to eat plants and fruits to be healthy, but large carnivores (Tigers, Lions, etc.) don’t?

Question

Why do humans need to eat plants and fruits to be healthy, but large carnivores (Tigers, Lions, etc.) don’t?

In: Biology

Answer 1

Humans are not carnivores, we’re omnivores—we evolved to eat a diet that has a lot of variety to it. People can eat all vegetarian and live, and they can also eat all meat and live, but there can be deficits in such diets that are less likely than in cases of a very varied diet. We evolved from apes that ate a vegetarian diet. Meat then became a key component of our diet and our digestive tract evolved to be able to process the eating of meats and plants.