Brian Cox and Robin Ince examine their own diets and the diet fads of the past to ask what should we actually be eating? They are joined by Dr Chris van Tulleken, Professor Janet Cade and comedian Harry Hill to discuss the nutritional merits, or lack there of, of everything from sausages to strawberries, and discover whether our obsession with low fat ,low sugar or low carb diets have any scientific basis. They discuss our increased dependence on ultra-processed foods and what this means for our health, and whether eating 1 calorie of a chocolate bar, is really the same as eating 1 calorie of a stick of celery. New episodes released Saturday. If you're in the UK, listen to the full series first on BBC Sounds bbc.in/42x5sO5 Producer: Adrian Washbourne Executive Producer: Alexandra Feachem