Remember, we are omnivores. We eat everything. We have a survival digestive tract, meaning that when we were leaving the cave and looking for food, we ate what we could find, dig, pick or kill before it killed us. In 4.4 million years, we haven't changed much. You should see some of the cavemen I used to play football with.
Protein is what builds all the tissues in the body from hair to muscle.
So protein is very important, but it shouldn't be the only thing we eat. The Atkins Diet seems to be the one everyone is using these days, but it really isn't new. Almost every diet in the last 20 years has at some point required eating mostly protein. Some of you may do well on this diet, and that's fine. But 99 percent of you probably won't be at it two years from now because of boredom from lack of food choices.