This is the best time of day to take iron, vitamin D and B12 supplements
Supplement shelves can give the impression that almost everyone needs something. Yet for generally healthy adults, a review of 84 studies found that routine vitamin and mineral supplements offered little or no protection against cardiovascular disease, cancer or early death. Taking a supplement without a clear reason may also cause harm. High doses of some water-soluble vitamins can cause harm, and too much vitamin B6, for example, has been linked to nerve damage. Some fat-soluble vitamins, particularly vitamin A, can accumulate and cause toxicity when taken in excess. A diagnosed deficiency is one reason to take a supplement. Other evidence-based reasons include folic acid before and during early pregnancy, vitamin B12 for people who cannot obtain enough from food and the ten micrograms of vitamin D that UK guidance recommends people consider during autumn and winter. Once there is a sound reason to take a supplement, timing can sometimes affect absorption. Usually, “timing” concerns meals, drinks and other medicines rather than a perfect hour on the clock. Iron: the fussiest supplement Iron supplements are used …



