Folic Acid, Iron, Iodine, Vitamin B12 and Zinc: study protocols
10 study groups took Folic Acid together with Iron, Iodine, Vitamin B12 and Zinc. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Folic Acid
10 study groups in 8 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, 70% of 10 study groups.
| Daily dose | Study groups |
|---|---|
| 250 mcg or less | 1 |
| 250 mcg to 500 mcg | 7 |
| 500 mcg to 1 mg | 2 |
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, 70% of 10 study groups.
| Daily dose | Study groups |
|---|---|
| 5 mg to 10 mg | 2 |
| 10 mg to 25 mg | 1 |
| 25 mg to 50 mg | 7 |
Dose per serving from research: Iodine
10 study groups in 8 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, 80% of 10 study groups.
| Daily dose | Study groups |
|---|---|
| 50 mcg or less | 1 |
| 50 mcg to 100 mcg | 1 |
| 100 mcg to 250 mcg | 8 |
Dose per serving from research: Vitamin B12
10 study groups in 8 studies say how much Vitamin B12 participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 2.5 mcg to 5 mcg, 70% of 10 study groups.
| Daily dose | Study groups |
|---|---|
| 0.5 mcg or less | 1 |
| 0.5 mcg to 1 mcg | 1 |
| 1 mcg to 2.5 mcg | 0 |
| 2.5 mcg to 5 mcg | 7 |
| over 5 mcg | 1 |
Dose per serving from research: Zinc
10 study groups in 8 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, 70% of 10 study groups.
| Daily dose | Study groups |
|---|---|
| 5 mg or less | 1 |
| 5 mg to 10 mg | 2 |
| 10 mg to 25 mg | 7 |
Commonly used together
10 of 10 study groups took Folic Acid, Iron, Iodine, Vitamin B12 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 |
|---|---|
| Copper | 9 |
| Selenium | 9 |
| Vitamin A | 9 |
| Vitamin B6 | 9 |
| Vitamin D | 9 |
| Vitamin E | 9 |
| Vitamin C | 8 |
| Niacin | 7 |
| Riboflavin | 6 |
| Thiamine | 3 |
10 study groups