★ 9.0
★ 6.0
★ 5.3
★ 0.0
★ 2.7
★ 7.1
★ 8.0
★ 5.4
★ 6.5
★ 1.5
★ 6.8
★ 7.7
★ 7.4
★ 6.9
Dr Derek Muller takes us on an epic adventure, a world-spanning investigation of vitamin science and history, asking how do we decide whether to take vitamin supplements, or not?
