Vitamin E, Zinc, Vitamin C and Selenium: study protocols
11 study groups took Vitamin E together with Zinc, Vitamin C and Selenium. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Vitamin E
11 study groups in 11 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, 45% of 11 study groups.
| Daily dose | Study groups |
|---|---|
| 5 mg or less | 1 |
| 5 mg to 10 mg | 1 |
| 10 mg to 25 mg | 4 |
| 25 mg to 50 mg | 5 |
Dose per serving from research: Zinc
11 study groups in 11 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, 82% of 11 study groups.
| Daily dose | Study groups |
|---|---|
| 5 mg or less | 1 |
| 5 mg to 10 mg | 1 |
| 10 mg to 25 mg | 9 |
Dose per serving from research: Vitamin C
11 study groups in 11 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, 64% of 11 study groups.
| Daily dose | Study groups |
|---|---|
| 25 mg to 50 mg | 2 |
| 50 mg to 100 mg | 2 |
| 100 mg to 250 mg | 7 |
Dose per serving from research: Selenium
9 study groups in 9 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, 78% of 9 study groups.
| Daily dose | Study groups |
|---|---|
| 5 mcg or less | 1 |
| 5 mcg to 10 mcg | 0 |
| 10 mcg to 25 mcg | 1 |
| 25 mcg to 50 mcg | 0 |
| 50 mcg to 100 mcg | 7 |
Commonly used together
11 of 11 study groups took Vitamin E, Zinc, Vitamin C and Selenium 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 |
| Copper | 4 |
| Iron | 4 |
| Vitamin A | 4 |
| Folic Acid | 3 |
| Iodine | 3 |
| Vitamin B12 | 3 |
11 study groups