Vitamin D, Zinc and Calcium: study protocols
9 study groups took Vitamin D together with Zinc and Calcium. These are the doses the studies gave. They are not a recommendation.
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: 250 IU to 500 IU, 80% of 5 study groups.
| Daily dose | Study groups |
|---|---|
| 250 IU to 500 IU | 4 |
| 500 IU to 1,000 IU | 0 |
| 1,000 IU to 2,500 IU | 0 |
| over 2,500 IU | 1 |
Dose per serving from research: Zinc
9 study groups in 8 studies say how much Zinc participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 5 mg to 10 mg, 44% of 9 study groups.
| Daily dose | Study groups |
|---|---|
| 1 mg to 2.5 mg | 3 |
| 2.5 mg to 5 mg | 0 |
| 5 mg to 10 mg | 4 |
| 10 mg to 25 mg | 1 |
| 25 mg to 50 mg | 1 |
Dose per serving from research: Calcium
9 study groups in 8 studies say how much Calcium participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 500 mg to 1 g, 56% of 9 study groups.
| Daily dose | Study groups |
|---|---|
| 250 mg or less | 1 |
| 250 mg to 500 mg | 0 |
| 500 mg to 1 g | 5 |
| 1 g to 2.5 g | 3 |
Commonly used together
9 of 9 study groups took Vitamin D, Zinc and Calcium with something else. Shown: what 3 or more different studies gave.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Magnesium | 7 |
9 study groups