Zinc, Folic Acid and Iron: study protocols
21 study groups took Zinc together with Folic Acid and Iron. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Zinc
21 study groups in 17 studies say how much Zinc participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 25 mg to 50 mg, 38% of 21 study groups.
| Daily dose | Study groups |
|---|---|
| 2.5 mg to 5 mg | 4 |
| 5 mg to 10 mg | 4 |
| 10 mg to 25 mg | 5 |
| 25 mg to 50 mg | 8 |
Dose per serving from research: Folic Acid
20 study groups in 16 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, 45% of 20 study groups.
| Daily dose | Study groups |
|---|---|
| 100 mcg or less | 1 |
| 100 mcg to 250 mcg | 8 |
| 250 mcg to 500 mcg | 9 |
| 500 mcg to 1 mg | 2 |
Dose per serving from research: Iron
19 study groups in 16 studies say how much Iron participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 50 mg to 100 mg, 37% of 19 study groups.
| Daily dose | Study groups |
|---|---|
| 5 mg to 10 mg | 2 |
| 10 mg to 25 mg | 5 |
| 25 mg to 50 mg | 5 |
| 50 mg to 100 mg | 7 |
Commonly used together
15 of 21 study groups took Zinc, Folic Acid and Iron with something else. Shown: what 3 or more different studies gave.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Vitamin A | 13 |
| Vitamin C | 9 |
| Vitamin D | 7 |
| Copper | 6 |
| Iodine | 6 |
| Vitamin B12 | 6 |
| Vitamin E | 6 |
| Selenium | 5 |
| Riboflavin | 4 |
| Vitamin B6 | 4 |
21 study groups