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 Rose patented a method used to preserve citrus juice without alcohol in 1867, creating a concentrated drink known as Rose's lime juice. The Merchant Shipping Act of 1867 required all ships of the Royal Navy and Merchant Navy to provide a daily lime ration to sailors to prevent scurvy. The product became nearly ubiquitous, hence the term "limey", first for British sailors, then for English immigrants within the former British colonies (particularly America, New Zealand and South Africa), and finally, in old American slang, all British people. The plant "Cochlearia officinalis", also known as "Common Scurvygrass", acquired its common name