Michael Mosley and James Wong reveal the science of our food. James visits the Peruvian Andes to learn how a bitter potato helps inhabitants survive the altitude. Show more
Discover 11,128,835 listings and 279,767 playable programmes from the BBC
Michael Mosley and James Wong reveal the science of our food. James visits the Peruvian Andes to learn how a bitter potato helps inhabitants survive the altitude. Show more