Too much vitamin C: Is it harmful?
Is it possible to take too much vitamin C?Updated: 2022-04-28
Answer Section
Vitamin C is an essential nutrient. But you can get too much of it.
Vitamin C (ascorbic acid) is a water-soluble vitamin that supports growth and development. It also helps your body absorb iron. Because your body doesn't make or store vitamin C, it's important to include vitamin C in your diet.
Most people can get enough vitamin C for the day in their food. An orange or a cup of strawberries, chopped red pepper or broccoli provides enough vitamin C for the day.
The recommended daily amount for vitamin C is 75 milligrams (mg) a day for women and 90 mg a day for men. During pregnancy, 120 mg a day are recommended. The upper limit for all adults is 2,000 mg a day. Although too much dietary vitamin C is unlikely to be harmful, large doses of vitamin C supplements might cause:
- Diarrhea
- Nausea
- Vomiting
- Heartburn
- Stomach (abdominal) cramps
- Headache
Remember, for most people, a healthy diet provides enough vitamin C.