Folic Acid, Vitamin B12 and Zinc: study protocols
18 study groups took Folic Acid together with Vitamin B12 and Zinc. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Folic Acid
18 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, 61% of 18 study groups.
| Daily dose | Study groups |
|---|---|
| 100 mcg or less | 1 |
| 100 mcg to 250 mcg | 3 |
| 250 mcg to 500 mcg | 11 |
| 500 mcg to 1 mg | 3 |
Dose per serving from research: Vitamin B12
14 study groups in 12 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, 64% of 14 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 | 2 |
| 2.5 mcg to 5 mcg | 9 |
| 5 mcg to 10 mcg | 1 |
Dose per serving from research: Zinc
14 study groups in 12 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, 57% of 14 study groups.
| Daily dose | Study groups |
|---|---|
| 2.5 mg or less | 1 |
| 2.5 mg to 5 mg | 1 |
| 5 mg to 10 mg | 3 |
| 10 mg to 25 mg | 8 |
| over 25 mg | 1 |
Commonly used together
18 of 18 study groups took Folic Acid, Vitamin B12 and Zinc 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 |
|---|---|
| Iron | 16 |
| Vitamin A | 12 |
| Vitamin B6 | 12 |
| Copper | 11 |
| Iodine | 11 |
| Vitamin D | 11 |
| Vitamin E | 11 |
| Selenium | 10 |
| Vitamin C | 10 |
| Niacin | 9 |
18 study groups