Why not just stop refining flour, which is the cause of the deficiency in the first place? Many refmed foods have lost other key nutrients such as zinc, selenium or chromium. The foods often state that they contain 100 per cent of the RDA of every vitamin, but what about these minerals? It is far better to choose wholefoods, unrefined and without sugar, and then supplement meaningful amounts of a wide range of vitamins and minerals in a highstrength multi.