Zinc, Selenium, Folic Acid, Vitamin A and Iodine: study protocols
5 study groups took Zinc together with Selenium, Folic Acid, Vitamin A and Iodine. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Zinc
5 study groups in 4 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 and 25 mg to 50 mg, 40% of 5 study groups each.
| Daily dose | Study groups |
|---|---|
| 10 mg or less | 1 |
| 10 mg to 25 mg | 2 |
| 25 mg to 50 mg | 2 |
Dose per serving from research: Selenium
5 study groups in 4 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 and 100 mcg to 250 mcg, 40% of 5 study groups each.
| Daily dose | Study groups |
|---|---|
| 25 mcg or less | 1 |
| 25 mcg to 50 mcg | 0 |
| 50 mcg to 100 mcg | 2 |
| 100 mcg to 250 mcg | 2 |
Dose per serving from research: Folic Acid
5 study groups in 4 studies say how much Folic Acid participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 250 mcg to 500 mcg and 500 mcg to 1 mg, 40% of 5 study groups each.
| Daily dose | Study groups |
|---|---|
| 100 mcg to 250 mcg | 1 |
| 250 mcg to 500 mcg | 2 |
| 500 mcg to 1 mg | 2 |
Dose per serving from research: Vitamin A
5 study groups in 4 studies say how much Vitamin A participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 500 mcg to 1 mg and 1 mg to 2.5 mg, 40% of 5 study groups each.
| Daily dose | Study groups |
|---|---|
| 250 mcg to 500 mcg | 1 |
| 500 mcg to 1 mg | 2 |
| 1 mg to 2.5 mg | 2 |
Dose per serving from research: Iodine
5 study groups in 4 studies say how much Iodine participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 100 mcg to 250 mcg and 250 mcg to 500 mcg, 40% of 5 study groups each.
| Daily dose | Study groups |
|---|---|
| 100 mcg or less | 1 |
| 100 mcg to 250 mcg | 2 |
| 250 mcg to 500 mcg | 2 |
Commonly used together
5 of 5 study groups took Zinc, Selenium, Folic Acid, Vitamin A and Iodine with something else. Shown: what 3 or more different studies gave.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Copper | 5 |
| Iron | 5 |
| Vitamin C | 5 |
| Vitamin E | 5 |
| Vitamin D | 4 |
| Vitamin B12 | 3 |
5 study groups