Calcium and Vitamin D: study protocols
178 study groups took Calcium together with Vitamin D. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Calcium
177 study groups in 116 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, 54% of 177 study groups.
| Daily dose | Study groups |
|---|---|
| 250 mg or less | 1 |
| 250 mg to 500 mg | 39 |
| 500 mg to 1 g | 95 |
| 1 g to 2.5 g | 38 |
| over 2.5 g | 4 |
Dose per serving from research: Vitamin D
120 study groups in 82 studies say how much Vitamin D participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 500 IU to 1,000 IU, 43% of 120 study groups.
| Daily dose | Study groups |
|---|---|
| 100 IU or less | 1 |
| 100 IU to 250 IU | 13 |
| 250 IU to 500 IU | 43 |
| 500 IU to 1,000 IU | 51 |
| 1,000 IU to 2,500 IU | 7 |
| over 2,500 IU | 5 |
Commonly used together
35 of 178 study groups took Calcium and Vitamin D with something else. Shown: what 3 or more different studies gave.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Zinc | 6 |
| Multivitamin | 4 |
178 study groups