The nutritional status in the general populations are often deficient in vitamins, minerals and unsaturated fatty acids, omega-3. According to the american data deficiency of these compounds is observed exceptionally in patients suffering from mental disorders. Above reports encourage the psychiatrists to define the doses which could be recommended to the patients taking only prescription drugs. The biochemical mechanisms known as the basis of mental disorders support this idea. The short survey of the literature data given in this article shows unusual role of the vitamins and creates the scientific basis for the slogan: “vitamins are for health”.