Text 1. Do we need extra vitamins? Many people believe that taking vitamin supplements is the best safeguard against the dangers of an incomplete diet, but this should be a last resort (最后手段)rather than a way out of a problem. Even if there is a genuine need for extra vitamins, then sooner or later the question arises which ones do I need, how much of them, and how often? There is really no simple answer to this question. The Food Standards Committee (guardians保护者 of our laws on food puri
