Vitamin B12 and Iron: study protocols
15 study groups took Vitamin B12 together with Iron. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Vitamin B12
15 study groups in 13 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, 33% of 15 study groups.
| Daily dose | Study groups |
|---|---|
| 1 mcg or less | 1 |
| 1 mcg to 2.5 mcg | 3 |
| 2.5 mcg to 5 mcg | 5 |
| 5 mcg to 10 mcg | 1 |
| 10 mcg to 25 mcg | 0 |
| 25 mcg to 50 mcg | 1 |
| 50 mcg to 100 mcg | 0 |
| 100 mcg to 250 mcg | 0 |
| 250 mcg to 500 mcg | 0 |
| 500 mcg to 1 mg | 1 |
| 1 mg to 2.5 mg | 1 |
| 2.5 mg to 5 mg | 0 |
| 5 mg to 10 mg | 2 |
Dose per serving from research: Iron
12 study groups in 10 studies say how much Iron participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 5 mg to 10 mg and 25 mg to 50 mg, 33% of 12 study groups each.
| Daily dose | Study groups |
|---|---|
| 5 mg to 10 mg | 4 |
| 10 mg to 25 mg | 3 |
| 25 mg to 50 mg | 4 |
| over 50 mg | 1 |
Commonly used together
15 of 15 study groups took Vitamin B12 and Iron with something else. Shown: what 3 or more different studies gave. The 10 most common of 13.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Folic Acid | 12 |
| Vitamin A | 9 |
| Zinc | 8 |
| Vitamin B6 | 7 |
| Vitamin D | 7 |
| Riboflavin | 6 |
| Copper | 5 |
| Iodine | 5 |
| Thiamine | 5 |
| Vitamin E | 5 |
15 study groups