We see an increasing number of people who prefer the vegetables over the meat. Almost everyone is proud to share this information through the social services nowadays, but as we may know from our ancestors diversity in the ration is crucial for surviving. So, let's discuss in detail whether is good or not to be a vegetarian. Consuming a lot of red meat can cause a various kind of diseases. It supports by few modern researches showing us a positive correlation between the consuming rate of the red meat and the rate of the cancer diseases. Through these works researchers are trying to tell us that we should decrease the amount of red meat in our daily diet and include more plant-based meals. So, if we believe in this, it looks like if we decrease the amount of meat we would stay healthy for a longer period of our life. Despite of the results of the previous experiments we don't have any researches that support plant-based only diet. It doesn't look like having only the plants ...