Many ethnic dishes don't need meat at all. How about . . Try serving a large bowl of hearty soup with homemade bread and a tossed salad for a winter meal, or make a casserole with dried beans, grains and vegetables all in one dish. This theory has been disproven. The American Dietetic Association says that eating enough calories and a good variety of foods throughout the day will provide your body with enough essential amino acids to build good protein.
Protein supplements are unnecessary, and amino acid supplements can actually be harmful.
Even if you are an athlete who may need a little bit more protein, your best source is still food.