Food combining

As there are no foods that contain an optimum combination of the required nutrients such as fat, protein, minerals, vitamins, water and fiber, the diet must include the required quantities of the various nutrient groups in order to guarantee optimal provision. Naturally each group contains some foodstuffs, which have a higher rating from the point of view of physiological nourishment, and others, which have a lower rating. So, in the group showing cereals and cereal products, we have a slice of whole meal wheat bread, which is rated higher than a slice of toasted bread made from milled white flour.