Scurvy and the First Clinical Trial

In the age of sail, a disease haunted the seas that was more deadly than any battle. It was called scurvy. Caused by a simple lack of Vitamin C, it triggered a horrifying breakdown of the body. Without this key nutrient, the body cannot produce collagen, the biological glue that holds human tissue together. Sailors’ gums would turn black and spongy, their teeth falling from their sockets. Most shockingly, old, long-healed wounds would physically unzip, reopening into fresh gashes as if the injury had just occurred. Even decades-old bone fractures could spontaneously re-break. Between the 15th and 18th centuries, scurvy killed an estimated two million sailors, more than all naval combat, shipwrecks, and storms combined. Finding a cure was not just a medical challenge; it was a matter of national survival.