Many believe that heating food at around 120 degrees will destroy 50 percent of vitamins and proteins, 80 percent of minerals and all of the enzymes.
It is not true. What is getting destroyed is insignificant. Some vitamins are indeed affected by cooking but you still get a lot. The enzymes destroyed by heat are useless anyway. Minerals, proteins, fats, carbohydrates are not destroyed by heat. Some foods are unsafe to eat not cooked.