Vitamin B12 and Vitamin D: study protocols
10 study groups took Vitamin B12 together with Vitamin D. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Vitamin B12
10 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, 50% of 10 study groups.
| Daily dose | Study groups |
|---|---|
| 1 mcg to 2.5 mcg | 3 |
| 2.5 mcg to 5 mcg | 5 |
| 5 mcg to 10 mcg | 2 |
Dose per serving from research: Vitamin D
8 study groups in 7 studies say how much Vitamin D participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 2.5 mcg to 5 mcg, 50% of 8 study groups.
| Daily dose | Study groups |
|---|---|
| 2.5 mcg to 5 mcg | 4 |
| 5 mcg to 10 mcg | 3 |
| 10 mcg to 25 mcg | 0 |
| over 25 mcg | 1 |
Commonly used together
10 of 10 study groups took Vitamin B12 and Vitamin D 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 |
|---|---|
| Vitamin B6 | 8 |
| Folic Acid | 7 |
| Iron | 7 |
| Riboflavin | 6 |
| Zinc | 6 |
| Copper | 5 |
| Iodine | 5 |
| Vitamin A | 5 |
| Vitamin C | 5 |
| Vitamin E | 5 |
10 study groups