You’ll get enough protein from plants.

According to traditional dietary standards, a 140-pound woman should

have 50 grams of protein a day, and for a vegan that might come from a cup each of cooked spinach (5 grams), lentils (18 grams), and tempeh (a soy product with 41 grams). (You can find more suggestions from the Vegetarian Resource Group.)

In fact, large-scale research like The China Study have revealed that too much protein, namely animal protein,

is harmful for your health. Other research shows that excess protein in your body can strain your kidneys or cling as fat.