Folic Acid, Vitamin A, Vitamin C, Zinc and Iron: study protocols
11 study groups took Folic Acid together with Vitamin A, Vitamin C, Zinc and Iron. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Folic Acid
11 study groups in 9 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, 73% of 11 study groups.
| Daily dose | Study groups |
|---|---|
| 100 mcg to 250 mcg | 2 |
| 250 mcg to 500 mcg | 8 |
| over 500 mcg | 1 |
Dose per serving from research: Vitamin A
10 study groups in 8 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, 70% of 10 study groups.
| Daily dose | Study groups |
|---|---|
| 100 mcg to 250 mcg | 1 |
| 250 mcg to 500 mcg | 2 |
| 500 mcg to 1 mg | 7 |
Dose per serving from research: Vitamin C
10 study groups in 8 studies say how much Vitamin C participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 50 mg to 100 mg, 70% of 10 study groups.
| Daily dose | Study groups |
|---|---|
| 10 mg or less | 1 |
| 10 mg to 25 mg | 0 |
| 25 mg to 50 mg | 2 |
| 50 mg to 100 mg | 7 |
Dose per serving from research: Zinc
11 study groups in 9 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, 64% of 11 study groups.
| Daily dose | Study groups |
|---|---|
| 2.5 mg or less | 1 |
| 2.5 mg to 5 mg | 2 |
| 5 mg to 10 mg | 0 |
| 10 mg to 25 mg | 7 |
| over 25 mg | 1 |
Dose per serving from research: Iron
10 study groups in 8 studies say how much Iron participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 25 mg to 50 mg, 80% of 10 study groups.
| Daily dose | Study groups |
|---|---|
| 10 mg or less | 1 |
| 10 mg to 25 mg | 1 |
| 25 mg to 50 mg | 8 |
Commonly used together
10 of 11 study groups took Folic Acid, Vitamin A, Vitamin C, Zinc 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 |
|---|---|
| Copper | 9 |
| Vitamin D | 9 |
| Vitamin E | 9 |
| Iodine | 8 |
| Niacin | 8 |
| Selenium | 8 |
| Vitamin B12 | 8 |
| Vitamin B6 | 7 |
| Riboflavin | 5 |
| Thiamine | 3 |
11 study groups