Technically, dogs are able to get all their nutrients from a carefully formulated vegetarian diet. Dogs are indeed omnivores in this sense, though they obviously like meat. The same is NOT true with cats. Cats are true carnivores and have nutritional needs that can only be met with amino acids that are only found in meats, although they can be synthesized by other means now days. There are other issues though, and even the manufacturers of at least one brand of vegan cat food recommend that cats eat a mix of vegan cat food and real meat because of their concerns that not enough of their customers were following their recommendations and they were concerned with the health of the cats.
Regarding human children, plenty of those have grown up fully vegan and are doing just fine: http://veganhealth.org/articles/realveganchildren
P.S. Not a vegan now, but I was for a long time. It still astounds me at how much misinformation there is floating around on the subject.




Feed them meat!
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