A multivitamin combines several vitamins and minerals in one tablet, which suits busy people, irregular eaters and anyone on a restricted diet. When choosing, read the amount of each nutrient per tablet and compare it with recommended intakes; prefer products that state who they are for (men, women, over-50s) and show a registration number. Tablets with fat-soluble vitamins are best taken after a meal that contains some fat. If you already take a multivitamin, do not add single products of the same nutrient until you have added up the total. Supplements are not medicines and do not replace treatment.