National Vitamin C Day is on Sunday, April 4, 2027, and it falls on April 4 every year. It’s a reminder to eat foods rich in vitamin C, the nutrient that prevents scurvy. Citrus, peppers and kiwi are easy places to start.
When Is National Vitamin C Day?
It’s always April 4. It isn’t an official health observance from a government agency.
Who Started National Vitamin C Day?
No founder or start year has been documented for the day itself.
Background: the sailor who tested citrus
Vitamin C’s story begins with scurvy. Between May and June 1747, Scottish naval surgeon James Lind ran a test aboard HMS Salisbury. He chose 12 sailors with scurvy and gave pairs of them different treatments.
The two men given oranges and lemons were nearly recovered within weeks. Lind published his Treatise of the Scurvy in 1753, but the Royal Navy didn’t adopt citrus rations until 1795.
Why Vitamin C Matters
The day highlights a nutrient most people can get from food. According to the National Institutes of Health, adult men need 90 mg a day and women need 75 mg. Pregnant women need 85 mg, and smokers should add 35 mg.
Most people in the U.S. get enough from what they eat and drink. Scurvy can develop after weeks of getting almost none, under about 10 mg a day.
Citrus fruits and their juices, red and green peppers and kiwifruit are among the richest sources. Broccoli and other vegetables add more.
How to Celebrate National Vitamin C Day
- Eat red bell peppers: slice them into strips for hummus or toss them into a stir-fry.
- Start with citrus: have an orange or grapefruit with breakfast.
- Add kiwifruit: halve one and eat it with a spoon.
- Steam broccoli lightly: quick cooking keeps it bright green and crisp.
- Make a citrus salad: combine orange segments, red onion, mint and olive oil.
- Teach the scurvy story: act out Lind’s test with kids, using oranges and lemons as props.
- Squeeze fresh lemonade: lemon juice, water and a little honey make an easy vitamin C drink.
- Add citrus to dinner: finish roasted fish or vegetables with lemon or lime juice.
Frequently Asked Questions
Does vitamin C prevent colds?
Not for most people. The NIH says regular supplements don’t lower the risk of catching a cold, though they may make colds slightly shorter. Starting after symptoms appear doesn’t seem to help.
Can you get too much vitamin C?
Yes. The upper limit for adults is 2,000 mg a day from all sources. More than that can cause diarrhea, nausea and stomach cramps.
What are the signs of scurvy?
Fatigue, inflamed gums, small red or purple skin spots, joint pain and slow wound healing. Untreated scurvy can be fatal.