How to deal with vitamins? There are many vital nutrients, which the human body is not able to produce by itself. Therfore we are in the need of a continous intake of so-called essential nutrients. These include certain amino acids, unsaturated fatty acids, as well as most vitamins and minerals. Approximately 80-160 million North Americans and Europeans regularly take vitamin supplements. But what vitamins we really need and how can we put this best? More power, more vitamins. Especially a...