The Many Times Humanity Forgot How to Cure Scurvy

Ancient Discoveries and Dietary Needs

• 📜 The earliest written record of scurvy is the Eber’s Papyrus from ancient Egypt (1550 BCE), which recommended eating onions and vegetables as a cure.
• 🧬 Humans, unlike most animals, cannot produce their own vitamin C (ascorbic acid) and must obtain it from their diet.
• 🍎 Vitamin C is crucial for maintaining skin, bones, and connective tissues, aiding iron absorption, and acting as an antioxidant.
• 📉 Vitamin C is unstable and breaks down when exposed to air or water, diminishing in preserved foods, which is a key factor in scurvy development during long voyages.

Historical Treatments and Missed Connections

• 🌲 In the 16th century, Iroquois people treated scurvy with tea made from pine needles, which are rich in vitamin C.
• 🍊 Portuguese explorer Vasco da Gama encountered scurvy on a voyage, was offered oranges which helped his crew, but failed to connect this to the cure, even rejecting further requests for citrus.
• ⚓ European sailors often suffered from scurvy due to diets of salted, preserved foods lacking vitamin C, while Arctic indigenous populations, who incorporated vitamin C-rich algae, rarely experienced it.
• 🍋 Despite some individuals like an English captain in 1622 and British navy surgeons prescribing lemon juice, the broader adoption of citrus as a cure was often abandoned or overlooked by organizations.

Scientific Breakthroughs and Rediscovery

• 🔬 In 1747, James Lind conducted the first controlled clinical trial, treating sailors with various remedies, concluding that oranges and lemons led to the fastest recovery, though he incorrectly attributed the cause to humidity.
• 🥔 The Irish Potato Famine and the US Civil War saw significant deaths from scurvy, highlighting its persistence even on land when fresh food was scarce.
• 🐹 Norwegian researchers in 1907 used guinea pigs (which also cannot produce vitamin C) and found that diets supplemented with lemon juice and cabbage cured scurvy-like symptoms.
• 🌶️ In 1930, Albert Szent-Györgyi isolated the anti-scurvy chemical, vitamin C, from paprika, leading to a Nobel Prize and a definitive understanding of the disease's cause.

Modern Scurvy and Prevention

• ⚠️ Scurvy, though rare in developed countries, still affects individuals with conditions like Crohn's disease or diabetes that impair vitamin C absorption or restrict diets.
• 🌍 It remains a risk for malnourished populations, including refugees in camps, where aid groups work to provide necessary vitamin C sources.
• ✅ Today, the cause and cure for scurvy are well-understood, emphasizing the importance of a varied diet rich in fruits and vegetables to prevent recurrence.