Michael Mosley: Secrets of Your Big Shop

Dr Michael Mosley uncovers what could be behind our health by looking at what's in our shopping trolleys. He goes undercover at the checkout to discover what Chris and Rebecca are buying, and what could be the reason for Rebecca's constant fatigue.

Full-time mum Natalie suffers with irritable bowel syndrome, and teacher Michael is known to his kids as 'beef bum' due to his toxic trumps and shocking bloating. Dr Michael ambushes them at the checkout, and starts them on a gut-busting food revamp.

Liam and Lydia would love to lose weight. They also want to discover the reason for their low moods, anxiety and bad skin. Dr Michael goes undercover as a takeaway delivery man and shocks the family with their weekly takeaway consumption.

Ricardo and Ambrose are worried about both their weight and heart health. But they cook all their meals from scratch and shun processed food, so they're not sure where the problem begins. Dr Michael Mosley takes a look in their shopping trolley.