Calcium, Zinc and Iron: study protocols
5 study groups took Calcium together with Zinc and Iron. These are the doses the studies gave. They are not a recommendation.
Dose per serving from research: Calcium
5 study groups in 4 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, 60% of 5 study groups.
| Daily dose | Study groups |
|---|---|
| 100 mg to 250 mg | 1 |
| 250 mg to 500 mg | 1 |
| 500 mg to 1 g | 3 |
Commonly used together
5 of 5 study groups took Calcium, Zinc and Iron with something else. Shown: what 3 or more different studies gave.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Vitamin B12 | 4 |
| Vitamin D | 4 |
5 study groups
| Study | |||||
|---|---|---|---|---|---|
| Apparent efficacy of food-based calcium supplementation in preventing rickets in Bangladesh 2008 · 500 mg Ca plus multivitamins, iron, and zinc · Children aged 1–5 years without rickets and in the upper decile of plasma alkaline phosphatase activity in a rickets-endemic area of Bangladesh | 500 mg | — | — | 390 days | — |
| A smartphone application to improve adherence to vitamin and mineral supplementation after bariatric surgery 2022 · Intervention group · Adults aged over 18 to 60 years undergoing gastric bypass or sleeve gastrectomy | 1 g | 7 mg | 100 mg | 1 year | 71 |
| A smartphone application to improve adherence to vitamin and mineral supplementation after bariatric surgery 2022 · Control group · Adults aged over 18 to 60 years undergoing gastric bypass or sleeve gastrectomy | 1 g | 7 mg | 100 mg | 1 year | 69 |
| A prospective randomized comparative trial evaluating postoperative nutritional intervention in patients with oral cancer 2022 · Intervention group · Adults with oral cancer after surgery; ages 18 and older, both sexes | 1 g | 40 mg | 100 mg | 26 weeks | 22 |
| Maternal B-vitamin and vitamin D status before, during, and after pregnancy and the influence of supplementation preconception and during pregnancy: Prespecified secondary analysis of the NiPPeR double-blind randomized controlled trial 2023 · intervention · Women planning pregnancy; generally healthy, recruited before conception | 150 mg | 10 mg | 12 mg | — | 870 |