Vitamin C is one of the best-known nutrients, and for good reason. It helps the body make collagen, heal wounds, absorb iron from plant foods and support the immune system. Our bodies cannot make vitamin C on their own, so we must get it from food. National Vitamin C Day, on April 4, is a reminder to eat colorful fruits and vegetables and to learn about the fascinating history of this essential vitamin.
History of National Vitamin C Day
For centuries, sailors on long voyages suffered from scurvy, a disease that caused bleeding gums, weakness and slow-healing wounds. Scurvy killed huge numbers of sailors during the age of exploration.
In 1747, Scottish naval surgeon James Lind carried out one of the earliest controlled clinical trials. He gave sailors with scurvy different treatments and found that those who ate oranges and lemons recovered quickly. Decades later, the British Royal Navy began issuing lemon juice and later lime juice to sailors, which is how British sailors got the nickname 'limeys'.
The substance responsible was not identified until the 20th century. In the late 1920s and early 1930s, Hungarian scientist Albert Szent-Györgyi isolated a compound he called hexuronic acid, later named ascorbic acid, meaning 'against scurvy'. He received the Nobel Prize in Physiology or Medicine in 1937. Around the same time, British chemist Walter Haworth determined its structure. Who started National Vitamin C Day is not documented.
Why National Vitamin C Day Matters
Vitamin C is essential for health, and many people do not eat enough fruits and vegetables. The day is a simple reminder to add more produce to meals.
The story of vitamin C is also a landmark in medical history. James Lind's experiment helped establish the value of testing treatments, a key idea in modern medicine.
How to Celebrate National Vitamin C Day
- Eat citrus: enjoy oranges, grapefruit or clementines.
- Go beyond oranges: try red bell peppers, kiwi, strawberries and broccoli, which are also rich in vitamin C.
- Make a smoothie: blend berries, mango and orange juice.
- Cook gently: steam or eat vegetables raw, since heat reduces vitamin C.
- Learn the history: read about James Lind's scurvy experiment.
Celebrating at Work, School and Home
At work, put out a bowl of oranges, clementines and kiwis, or share a quick fact about vitamin C-rich foods in a team chat. In classrooms, students can learn about James Lind's experiment as an example of the scientific method, test vitamin C levels in juices with iodine (with teacher supervision), or chart the vitamin C content of different fruits. At home, families can make a 'vitamin C salad' with strawberries, oranges and kiwi, try bell pepper strips with hummus, or squeeze fresh orange juice together. Talk with a doctor or pharmacist before starting any supplements.
Fun Facts About National Vitamin C Day
- Humans cannot make vitamin C and must get it from food.
- James Lind tested citrus as a scurvy treatment in 1747.
- Red bell peppers contain more vitamin C than oranges by weight.
National Vitamin C Day FAQs
When is National Vitamin C Day?
National Vitamin C Day is April 4.
Which foods have the most vitamin C?
Red bell peppers, kiwi, oranges, strawberries and broccoli are excellent sources.
Who discovered vitamin C?
Albert Szent-Györgyi isolated it around 1928–1932 and won the 1937 Nobel Prize.
What happens if you don't get enough vitamin C?
Severe deficiency can cause scurvy.