大象传媒

The truth behind vitamins and supplements, whether we need them and which pills can actually cause serious harm.

Tim Samuels also reveals the marketing secrets used to snare us in, from horny goats to snail trails; and the Mafia-like tactics of the industry which were straight out of the mob copybook. Mel Gibson makes a strange cameo too.

For extra content, videos and a regular newsletter go to www.bbc.co.uk/allhailkale