Iron, Selenium, Vitamin A, Folic Acid and Vitamin B6: study protocols
17 study groups took Iron together with Selenium, Vitamin A, Folic Acid and Vitamin B6. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Iron
17 study groups in 15 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, 59% of 17 study groups.
| Daily dose | Study groups |
|---|---|
| 5 mg to 10 mg | 5 |
| 10 mg to 25 mg | 1 |
| 25 mg to 50 mg | 10 |
| over 50 mg | 1 |
Dose per serving from research: Selenium
15 study groups in 13 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, 60% of 15 study groups.
| Daily dose | Study groups |
|---|---|
| 5 mcg to 10 mcg | 2 |
| 10 mcg to 25 mcg | 3 |
| 25 mcg to 50 mcg | 0 |
| 50 mcg to 100 mcg | 9 |
| over 100 mcg | 1 |
Dose per serving from research: Vitamin A
14 study groups in 12 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, 64% of 14 study groups.
| Daily dose | Study groups |
|---|---|
| 100 mcg to 250 mcg | 2 |
| 250 mcg to 500 mcg | 3 |
| 500 mcg to 1 mg | 9 |
Dose per serving from research: Folic Acid
15 study groups in 13 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 15 study groups.
| Daily dose | Study groups |
|---|---|
| 100 mcg to 250 mcg | 3 |
| 250 mcg to 500 mcg | 11 |
| over 500 mcg | 1 |
Dose per serving from research: Vitamin B6
17 study groups in 15 studies say how much Vitamin B6 participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 1 mg to 2.5 mg, 65% of 17 study groups.
| Daily dose | Study groups |
|---|---|
| 250 mcg to 500 mcg | 5 |
| 500 mcg to 1 mg | 0 |
| 1 mg to 2.5 mg | 11 |
| 2.5 mg to 5 mg | 1 |
Commonly used together
17 of 17 study groups took Iron, Selenium, Vitamin A, Folic Acid and Vitamin B6 with something else. Shown: what 3 or more different studies gave. The 10 most common of 12.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Copper | 16 |
| Iodine | 16 |
| Zinc | 16 |
| Vitamin B12 | 15 |
| Vitamin C | 15 |
| Vitamin E | 15 |
| Niacin | 13 |
| Vitamin D | 13 |
| vitamin B2 | 7 |
| Riboflavin | 6 |
17 study groups