Vitamin C: study protocols
74 study groups say how much Vitamin C participants took a day. These are the doses the studies gave. They are not a recommendation.
Dose per serving from products
38,277 products in our catalogue print how much Vitamin C a serving holds.
Most common: 50 mg to 100 mg, 29% of 38,277 products.
| Dose per serving | Products |
|---|---|
| 2.5 mg or less | 872 |
| 2.5 mg to 5 mg | 1,352 |
| 5 mg to 10 mg | 917 |
| 10 mg to 25 mg | 3,776 |
| 25 mg to 50 mg | 5,297 |
| 50 mg to 100 mg | 11,247 |
| 100 mg to 250 mg | 7,471 |
| 250 mg to 500 mg | 3,466 |
| 500 mg to 1 g | 3,018 |
| over 1 g | 861 |
Dose per serving from research
74 study groups in 52 studies say how much Vitamin C participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 250 mg to 500 mg, 35% of 74 study groups.
| Daily dose | Study groups |
|---|---|
| 25 mg or less | 1 |
| 25 mg to 50 mg | 10 |
| 50 mg to 100 mg | 6 |
| 100 mg to 250 mg | 12 |
| 250 mg to 500 mg | 26 |
| 500 mg to 1 g | 12 |
| 1 g to 2.5 g | 7 |
Commonly used together
47 of 74 study groups took Vitamin C with something else. Shown: what 3 or more different studies gave. The 10 most common of 11.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Vitamin E | 36 |
| Zinc | 25 |
| Beta-Carotene | 19 |
| Copper | 8 |
| Selenium | 8 |
| Vitamin A | 8 |
| Iron | 7 |
| Folic Acid | 6 |
| Collagen | 4 |
| Vitamin B12 | 3 |
74 study groups