This programme meets some devoted health food worshippers: a growing community of men and women who believe theirs is the healthiest diet on the planet.
They are called 'Raw Foodists' and they don't eat wheat, dairy, sugar, meat or fish, and most importantly, everything they do eat is completely raw, because they believe heating anything above 45 degrees Celsius destroys the food's essential enzymes and nutrients.
New director Rowan Deacon's film offers a timely morality tale to a nation becoming increasingly Californian in its attitude towards its food and its health. Just when does a fixation with healthy eating turn into an unhealthy habit?
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