We've all heard that a glass of wine a day is healthy or that spinach is a good source of iron. But what is true and what is a myth?
In recent years, researchers have started to understand why people love the foods they do, and that there may be a way to make snacks taste sweeter without adding any extra sugar – and it's all down to a trick that happens in the brain. This film meets a scientist who has grown a tomato that is sweeter and juicier than anything likely to be found on a supermarket shelf, and follows those hoping to become elite, professional tasters.
Giles Coren, the food critic takes up three extreme diet regimes in a bid to push the very limits of life expectancy. Giles's search to find a diet which might extend his life comes after his great-grandfather lived to the grand old age of 93. His grandfather passed away aged 76 and his father Alan died aged 69. The Coren men are bucking the global trend of living longer so Giles, now in his mid-forties, wants to find out what he can do to avoid a premature death.