Iron, Folic Acid, Iodine, Vitamin D and Vitamin B12: study protocols
9 study groups took Iron together with Folic Acid, Iodine, Vitamin D and Vitamin B12. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Iron
9 study groups in 7 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, 78% of 9 study groups.
| Daily dose | Study groups |
|---|---|
| 5 mg to 10 mg | 1 |
| 10 mg to 25 mg | 1 |
| 25 mg to 50 mg | 7 |
Dose per serving from research: Folic Acid
8 study groups in 6 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, 75% of 8 study groups.
| Daily dose | Study groups |
|---|---|
| 250 mcg to 500 mcg | 6 |
| 500 mcg to 1 mg | 2 |
Dose per serving from research: Iodine
8 study groups in 6 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, 88% of 8 study groups.
| Daily dose | Study groups |
|---|---|
| 50 mcg or less | 1 |
| 50 mcg to 100 mcg | 0 |
| 100 mcg to 250 mcg | 7 |
Dose per serving from research: Vitamin D
5 study groups in 3 studies say how much Vitamin D participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 100 IU to 250 IU, 80% of 5 study groups.
| Daily dose | Study groups |
|---|---|
| 100 IU or less | 1 |
| 100 IU to 250 IU | 4 |
Dose per serving from research: Vitamin B12
8 study groups in 6 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, 75% of 8 study groups.
| Daily dose | Study groups |
|---|---|
| 1 mcg or less | 1 |
| 1 mcg to 2.5 mcg | 0 |
| 2.5 mcg to 5 mcg | 6 |
| over 5 mcg | 1 |
Commonly used together
9 of 9 study groups took Iron, Folic Acid, Iodine, Vitamin D and Vitamin B12 with something else. Shown: what 3 or more different studies gave.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Zinc | 9 |
| Copper | 8 |
| Selenium | 8 |
| Vitamin A | 8 |
| Vitamin B6 | 8 |
| Vitamin C | 8 |
| Vitamin E | 8 |
| Niacin | 6 |
| Riboflavin | 4 |
9 study groups