21:00Inside HealthPreventing breast cancer, Iodine deficiency, Antibiotics for back painBBC Radio 4 Duration: 28 minutes Tue 25th Jun 2013, 21:00 on BBC Radio 4 LWAvailable for over a yearListen nowDr Mark Porter goes on a weekly quest to demystify the health issues that perplex us.GenresFactualHealth & WellbeingBrandInside Health Source: BBC Online