Humans have to maintain well balanced diets or they can develop vitamin deficiencies of certain vitamins and minerals, why does this not seem to be true for animals ?
In: Biology
Everything evolves and adapts to its environment. Many animals evolved around what sort of food was available to them, which is how you can get something like a Koala that just eats leaves and plants, whereas Cats, which are carnivores, need to eat meat to get their nutrients. Humans are omnivores, which means we tend to need meat *and* plant products to get all the nutrients we need.
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