During the Age of Sail, nearly 2 million sailors died due to a Vitamin C deficiency. Scurvy took down more sailors than shipwrecks, storms, and skirmishes combined. What is scurvy and how do parsley, camu camu, kiwifruit, and paprika prevent this disease? Does taking Vitamin C actually aid your immune system? Find out the answer to these questions and more on this episode of When Science Makes History.