ENERGY METABOLISM provides vitamin B12 for normal energy-yielding metabolism, and B6 and folic acid for reduction of tiredness and fatigue as well as the nutrients, that in accordance with the E.U. Health Claims Ordinance address the following topics: Skin: Riboflavin/niacin and biotin contribute to the maintenance of normal skin. Nerves: Thiamin/riboflavin/biotin/niacin/vitamins B6 and B12 contribute to normal functioning of the nervous system. Immune system: Vitamins B6, B12 and folic acid contribute to the normal function of the immune system. Other health benefits: Pantothenic acid contributes to normal mental performance.