Iron, Iodine, Zinc and Vitamin B12: study protocols
12 study groups took Iron together with Iodine, Zinc and Vitamin B12. These are the doses the studies gave. They are not a recommendation.
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: 25 mg to 50 mg, 58% of 12 study groups.
| Daily dose | Study groups |
|---|---|
| 5 mg to 10 mg | 4 |
| 10 mg to 25 mg | 1 |
| 25 mg to 50 mg | 7 |
Dose per serving from research: Iodine
11 study groups in 9 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, 64% of 11 study groups.
| Daily dose | Study groups |
|---|---|
| 25 mcg or less | 1 |
| 25 mcg to 50 mcg | 2 |
| 50 mcg to 100 mcg | 1 |
| 100 mcg to 250 mcg | 7 |
Dose per serving from research: Zinc
12 study groups in 10 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, 58% of 12 study groups.
| Daily dose | Study groups |
|---|---|
| 5 mg or less | 1 |
| 5 mg to 10 mg | 4 |
| 10 mg to 25 mg | 7 |
Dose per serving from research: Vitamin B12
11 study groups in 9 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, 55% of 11 study groups.
| Daily dose | Study groups |
|---|---|
| 0.5 mcg or less | 1 |
| 0.5 mcg to 1 mcg | 3 |
| 1 mcg to 2.5 mcg | 0 |
| 2.5 mcg to 5 mcg | 6 |
| over 5 mcg | 1 |
Commonly used together
12 of 12 study groups took Iron, Iodine, Zinc and Vitamin B12 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 | 11 |
| Vitamin A | 11 |
| Vitamin B6 | 11 |
| Vitamin C | 11 |
| Vitamin D | 11 |
| Vitamin E | 11 |
| Folic Acid | 10 |
| Selenium | 9 |
| Niacin | 8 |
| vitamin B1 | 5 |
12 study groups