Some people believe that raw food is healthier than cooked food because cooking destroys vitamins. However, we should be grateful that our ancestors discovered how to cook. Researchers have found that people who stuck to a raw food diet for three years suffered from chronic energy deficiency and lost a lot of weight. Cooked food is easier to digest, so enables us to take in the necessary calories without too much expenditure of energy. Cooking also removes toxins from food, making cooked food safer. This has the result that our bodies are not very good at disposing of toxins naturally, but this is not a problem provided that our diet consists principally of cooked food.