Beta-Carotene, Vitamin C and Zinc: study protocols
14 study groups took Beta-Carotene together with Vitamin C and Zinc. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Beta-Carotene
14 study groups in 12 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 and 10 mg to 25 mg, 50% of 14 study groups each.
| Daily dose | Study groups |
|---|---|
| 5 mg to 10 mg | 7 |
| 10 mg to 25 mg | 7 |
Dose per serving from research: Vitamin C
14 study groups in 12 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 and 250 mg to 500 mg, 50% of 14 study groups each.
| Daily dose | Study groups |
|---|---|
| 100 mg to 250 mg | 7 |
| 250 mg to 500 mg | 7 |
Dose per serving from research: Zinc
14 study groups in 12 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, 57% of 14 study groups.
| Daily dose | Study groups |
|---|---|
| 10 mg to 25 mg | 8 |
| 25 mg to 50 mg | 0 |
| 50 mg to 100 mg | 6 |
Commonly used together
14 of 14 study groups took Beta-Carotene, Vitamin C and Zinc 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 | 14 |
| Selenium | 7 |
14 study groups