We all think we know about vitamins – and we’re told they’re essential – but why do really need them and why can’t we produce them on our own? These are a few questions on the mind of intrepid filmmaker and health-freak Bryce Sage who travels from Washington DC to San Francisco to get to the bottom of the vitamin mystery.
Hannah Fry Helen Czerski Kevin Fong Teena Gade Peter Gibbs Michael Mosley Adam Rutherford Zoe Williams Giles Yeo James Young
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