Vitamin D and Calcium: study protocols
103 study groups took Vitamin D together with Calcium. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Vitamin D
86 study groups in 58 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, 47% of 86 study groups.
| Daily dose | Study groups |
|---|---|
| 250 IU or less | 4 |
| 250 IU to 500 IU | 40 |
| 500 IU to 1,000 IU | 32 |
| 1,000 IU to 2,500 IU | 5 |
| 2,500 IU to 5,000 IU | 4 |
| over 5,000 IU | 1 |
Dose per serving from research: Calcium
96 study groups in 66 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, 48% of 96 study groups.
| Daily dose | Study groups |
|---|---|
| 250 mg or less | 1 |
| 250 mg to 500 mg | 18 |
| 500 mg to 1 g | 46 |
| 1 g to 2.5 g | 27 |
| over 2.5 g | 4 |
Commonly used together
18 of 103 study groups took Vitamin D and Calcium with something else, but nothing that 3 or more different studies gave.
103 study groups