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