Vegans First of all, we should understand that vegans and vegetarians are people who cannot eat meat, fish, eggs, and even drink milk. Such people cannot imagine how to eat a dead animal.These people think that eating only vegetables and fruit is very healthy, and so you can live longer. You may not be afraid of various diseases. From their point of view, meat or milk contain lots of harmful nutrients. For some people being a vegetarian is a kind of a diet. Thousands of women all over the world try to take care of themselves. They want to be beautiful, thin, and sporty. They do not eat for hours or become a vegetarian. It may be terrible. But sometimes it can be helpful. For example, bodybuilders need to eat a lot of meat and daily products which contain proteins, calcium, and other helpful nutrients to build muscle mass. If they did not eat any meat their, body would be lean and ugly. All meat-contain products give you a lot of energy, but we cannot say so about fruits and vegetables. People who don't eat meat are always weak and not stamining.