Cooking food is a form of external pre-digestion that actively increases the effective nutritional content of most food, especially vegetables, which are otherw

Cooking food is a form of external pre-digestion that actively increases the effective nutritional content of most food, especially vegetables, which are otherwise too hard to break down (have you tried eating raw potato?). Some evolutionary biologists believe that learning to cook food was crucial in providing us with the extra calories required to fuel our gigantic brains.