ABSTRACT
Foods are materials, in a raw, processed, or formulated form, that are consumed orally by humans or animals for growth, health, satisfaction, pleasure, and satisfying social needs. Generally, there is no limitation on the amount of foods that may be consumed (as there is for a drug in the form of a dosage) [1]. However, this does not mean that we can eat as much as we want, thus we need to follow dietary guidelines. There is another category, supplements, which are also consumed as dosages mainly to prevent diseases or are beneficial to treat diseases. Chemically, foods are mainly composed of water, lipids, fats, and carbohydrates with a small proportion of minerals and organic compounds. Minerals in the form of salts and organic substances are present in foods as vitamins, emulsifiers, acids, antioxidants, pigments, polyphenols, or flavors [2].
