Vegetarianism takes this reasoning to its logical conclusion. Eating meat causes suffering, fear, social deprivation, loss of natural environment, loss of liberty, mutilation and illness to millions of animals every year. Vegetarianism, on the other hand, does not.
Vegetarianism is a tried and tested diet - a diet to be trusted.
Individuals and entire religions have abstained from eating meat for centuries. Vegetarian food can build muscle just as well as meat. Vegetarians are certainly not weedy and weak. Meat isn't macho. Vegetarian food is brain food, if the company of the following is anything to go by - Plato, Socrates, Pythagoras, Mahatma Gandhi, Einstein.