The doctors meet 24-year-old Lauren, who has been suffering from Polycystic Ovary Syndrome (PCOS) since she was 15. Her case is so extreme, with symptoms such as weight gain, fertility problems and most noticeably, excessive body and facial hair, that Lauren fears living as a virtual recluse forever unless she can find help. Crippling migraines are destroying 7-year-old Harvey's life, and his mother will try anything to help her son. Twenty-five-year-old twin sisters Kristen and Maren are trying to use food as a weapon against breast cancer. And can 44-year-old single dad Chris turn around the world's fifth biggest killer, Type 2 diabetes, with food? In 'The Truth About' Dr Pixie McKenna investigates Superfoods.