Nature offers an enormous variety of fruits, vegetables, grains, legumes, nuts, and seeds. Eating a variety of colors of fruits and vegetables can help ensure that the benefits nature provides are reaped. By the way, most of these compounds aren't available in a pill, so eating fruits and veggies is the only way to get them. A well-planned vegetarian eating plan can provide all of the nutrients needed. Everyone requires protein, comprised of amino acids, to maintain and repair muscle tissue, and manufacture blood cells, antibodies, hormones, enzymes, and all types of body structures.
Protein also helps children and adolescents to grow.
All plant foods are incomplete, except for soy. The good news is that some foods are missing the amino acids found in others. We call these complementary proteins. An example is rice and beans. Each food's assortment of amino acids complements the other.