Scurvy Prevention: James Lind’s Citrus Discovery and the British Navy’s Adoption

How Citrus Fruits Conquered Scurvy at Sea

In 1747, Scottish naval surgeon James Lind conducted one of the first controlled clinical trials aboard HMS Salisbury. He tested six remedies on sailors with scurvy and found that oranges and lemons produced dramatic recovery within days.

The Discovery

Lind proved that scurvy—a disease causing bleeding gums, joint pain, poor wound healing, and death—was caused by a dietary deficiency (later identified as vitamin C). Citrus fruits provided the missing factor.

Delayed Implementation

Despite Lind’s 1753 treatise, the British Admiralty didn’t mandate lemon juice for all sailors until 1795—over 40 years later. Once implemented, scurvy virtually disappeared from the Royal Navy, giving Britain a strategic advantage during the Napoleonic Wars.

Modern Understanding

Vitamin C (ascorbic acid) is essential for collagen synthesis. Without it, connective tissue breaks down. The recommended daily allowance is 75–90 mg for adults; citrus fruits, bell peppers, strawberries, and broccoli are excellent sources.