Vitamin C, Selenium, Zinc and Vitamin E: study protocols
8 study groups took Vitamin C together with Selenium, Zinc and Vitamin E. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Vitamin C
8 study groups in 8 studies say how much Vitamin C participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 100 mg to 250 mg, 88% of 8 study groups.
| Daily dose | Study groups |
|---|---|
| 50 mg or less | 1 |
| 50 mg to 100 mg | 0 |
| 100 mg to 250 mg | 7 |
Dose per serving from research: Selenium
6 study groups in 6 studies say how much Selenium participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 50 mcg to 100 mcg, 83% of 6 study groups.
| Daily dose | Study groups |
|---|---|
| 25 mcg or less | 1 |
| 25 mcg to 50 mcg | 0 |
| 50 mcg to 100 mcg | 5 |
Dose per serving from research: Zinc
8 study groups in 8 studies say how much Zinc participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 10 mg to 25 mg, 88% of 8 study groups.
| Daily dose | Study groups |
|---|---|
| 10 mg or less | 1 |
| 10 mg to 25 mg | 7 |
Dose per serving from research: Vitamin E
8 study groups in 8 studies say how much Vitamin E participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 25 mg to 50 mg, 63% of 8 study groups.
| Daily dose | Study groups |
|---|---|
| 10 mg or less | 1 |
| 10 mg to 25 mg | 2 |
| 25 mg to 50 mg | 5 |
Commonly used together
8 of 8 study groups took Vitamin C, Selenium, Zinc and Vitamin E with something else. Shown: what 3 or more different studies gave.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Beta-Carotene | 7 |
8 study groups