The team investigates traditional party food, asking whether sausage rolls, cakes, crisps, sweets and fizzy pop really do send children wild. GP Gio Miletto and dietician Lucy Jones host a kids' bash at Plumcroft Primary School in London to find out the truth. Visitors include a four-year-old with a severe case of epilepsy, who can have up to 300 seizures a day, and a 15-year-old Tourettes sufferer who wants to know if certain foods can reduce his symptoms. Last in the series.