First voyage of James Cook Cook had lost not a single man to scurvy, a remarkable and practically unheard-of achievement in 18th-century long-distance seafaring. Adhering to Royal Navy policy introduced in 1747, Cook persuaded his men to eat foods such as citrus fruits and sauerkraut. At that time it was known that poor diet caused scurvy but not specifically that a vitamin C deficiency was the culprit. Sailors of the day were notoriously against innovation, and at first the men would not eat the sauerkraut. Cook used a "method I never once knew to fail with seamen." He ordered it served to himself and the
Scurvy lambs, chickens, and ducks, along with lemons and oranges, due to which "some of our ill were cured of scurvy". Unfortunately, these travel accounts did not stop further maritime tragedies caused by scurvy, first because of the lack of communication between travelers and those responsible for their health, and because fruits and vegetables could not be kept for long on ships. In 1536, the French explorer Jacques Cartier, exploring the St. Lawrence River, used the local natives' knowledge to save his men who were dying of scurvy. He boiled the needles of the arbor vitae tree (Eastern White Cedar) to