Vitamin B12, Vitamin D and Folic Acid: study protocols
7 study groups took Vitamin B12 together with Vitamin D and Folic Acid. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Vitamin B12
7 study groups in 7 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, 57% of 7 study groups.
| Daily dose | Study groups |
|---|---|
| 1 mcg to 2.5 mcg | 1 |
| 2.5 mcg to 5 mcg | 4 |
| 5 mcg to 10 mcg | 2 |
Dose per serving from research: Vitamin D
5 study groups in 5 studies say how much Vitamin D participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 5 mcg to 10 mcg, 60% of 5 study groups.
| Daily dose | Study groups |
|---|---|
| 2.5 mcg to 5 mcg | 2 |
| 5 mcg to 10 mcg | 3 |
Dose per serving from research: Folic Acid
7 study groups in 7 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, 43% of 7 study groups.
| Daily dose | Study groups |
|---|---|
| 50 mcg or less | 1 |
| 50 mcg to 100 mcg | 0 |
| 100 mcg to 250 mcg | 1 |
| 250 mcg to 500 mcg | 3 |
| 500 mcg to 1 mg | 2 |
Commonly used together
7 of 7 study groups took Vitamin B12, Vitamin D and Folic Acid with something else. Shown: what 3 or more different studies gave. The 10 most common of 11.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Vitamin B6 | 6 |
| Zinc | 6 |
| Copper | 5 |
| Iodine | 5 |
| Iron | 5 |
| Vitamin A | 5 |
| Vitamin C | 5 |
| Vitamin E | 5 |
| Riboflavin | 4 |
| Selenium | 4 |
7 study groups