Minimize the use of ingredients than change pH such as vinegar and baking soda. Avoid using rusty utensils. Cook for as short of time as possible. Minimize reheating cooked foods. Summary The nutrients that our bodies need come from the foods that we eat.
Most foods contain several nutrients.
Some food preparation methods are better than others with regard to the food as consumed having better sensory and nutritive qualities. These methods are also generally less time consuming and more convenient. Vegetables generally have more desirable nutritive and sensory qualities if consumed raw or cooked by microwave steaming or cooked in a bag. The same is true for fruits. The most desirable methods for the cooking of meats are stir-frying for small strips of meat and broiling or roasting for larger cuts of meats.