Whenever today's guest, author Catherine Price, told people she was working on a book about vitamins (Vitamania, out now), they would immediately think of bottled pills.

It's easy to see why. While there are only 13 essential vitamins, thousands of supplements claim to boost our health. But should we be going back to basics, getting our vitamins from the foods we eat rather than the products of a powerful industry? Listen in to find out.