We spend millions of pounds each year on vitamin supplements. Yet mounting scientific research has found that they offer few benefits – while some are actually bad for us.

Experts say that the best way to consume vitamins is through a balanced diet, avoiding processed foods.  Fruit and vegetables, especially the so-called superfoods such as wheatgrass, are a potent source of naturally occurring vitamins and minerals. However, taking certain combinations of vitamin pills have been found to lead to premature death. 

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