III. On Nutrition
Now let us think again about the different kinds of foodstuffs. The salts have a special connection with the front part of the head; that is where they are chiefly deposited. The carbohydrates are deposited a little farther back. Upon the carbohydrates depends the proper shaping of the human form. The fats are deposited still farther back and from there they begin to fill out the body. The fats do not enter directly into the body but pass from the blood into the head and are distributed to the body from there. All the substances, including protein, pass through the head.
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