What is the one thing nutrition experts agree on? Eat more plants; mostly leaves. In countries where people eat a pound or more of fruits and vegetables a day, the rate of cancer is half what it is in the United States. Vegetarians are less susceptible to most Western diseases and as a consequence live longer than the rest of us. Plants are nutrient dense and calorically sparse; which makes for a lean, mean foundation on which to build our diet. The evidence is overwhelming in favor of plants! So is meat the enemy? Studies of flexitarians suggest that eating one or less servings of meat per day has no negative impact, so carnivores rejoice, but do so with restraint.