If we want to feed more people using less farmland in the future, we need to eat far less meat.
The study involved 26 non-vegetarians and 26 vegetarians. Those in the vegetarian category had been following the diet for at least three years and either avoided all animal products or avoided only meat and fish.
Meet the woman who traveled the world in search of an answer.
One of the most famous bodybuilders is recommending a vegetarian diet.