However, it is also a high source of protein, which is what most vegetarians have trouble getting enough of. Meat also has other nutrients we require found only in animal products. The omnivore has no cause for worry in the area of protein. They do, however, need to think about their fat intake. Too much fat can ultimately result in cardio-vascular difficulties since the fat builds up around the heart and stifles its movements.
Vegans have the most problems of all.
Most take protein supplement pills and eat tofu, another substance rich in protein but still a downside for vegans because soy lacks what can easily be found in eggs and dairy. That means they're lacking in calcium as well as a quality protein. Many have their teeth fall out. So they may take calcium pills as well. Pills are not food.