Calcium-only supplements are everywhere. They’re also incomplete. Calcium without the right co-factors doesn’t deposit where you need it it needs magnesium to cross cell membranes, zinc for the bone matrix proteins, and D3 to get absorbed in the first place. Without adequate D3, most ingested calcium just passes through. That’s not a minor gap; absorption drops from 30-40% down to around 10-15%. Calcium is sourced from various materials; coral calcium is natural source. All products meant for United Kingdom and Europe and United states are complied with ETO Testing, Health Certificate, Halal, and Microbiological testing to fit importing countries criteria.
This is why combination formulations exist. Strava Healthcare manufactures Calcium Magnesium Zinc Vitamin D3 tablets in India for pharma brands, nutraceutical companies, and institutional buyers, under GMP-certified conditions with full batch documentation and third-party COAs available on request.
Calcium Magnesium Zinc Vitamin D3 Tablets are growing in demand to countries like India, United Kingdom, Kenya, Guatemala, Bolivia, Venezuela, Guyana, Cambodia, Philippines, Ghana and United Arab Emirates.
What each ingredient actually does
Calcium is the main structural mineral in bone — 99% of the body’s calcium lives in bone and teeth. The remaining 1% in circulation handles muscle contraction, nerve signalling, blood clotting. When dietary intake is consistently low, the body draws from bone reserves. That’s the slow-moving mechanism behind osteoporosis.
Magnesium activates Vitamin D, regulates parathyroid hormone, and influences calcium transport across cell membranes. About 60% of the body’s magnesium is stored in bone. It’s also one of the more commonly depleted minerals in modern diets, which makes low magnesium-low bone density correlations unsurprising. Worth knowing.
Zinc is a cofactor for alkaline phosphatase, the enzyme involved in bone mineralisation. It plays a role in collagen synthesis too. The effects are modest but documented — deficiency slows skeletal growth in children and bone repair in adults.
Vitamin D3 (Cholecalciferol) is the absorption regulator. The numbers are stark: 10-15% calcium absorption without adequate D3, 30-40% with it. D3 deficiency affects an estimated 70-80% of Indians. For any bone health product sold in this market, leaving D3 out is hard to justify.
For whom this is typically formulated for
Post-menopausal women, elderly adults with reduced D3 synthesis, adolescents during peak bone mass formation, patients on long-term corticosteroids, and vegetarians or vegans with limited dietary sources of zinc and D3. Also used as adjunct support in osteoporosis management.
Manufacturing
Each batch is tested for potency against label claim, content uniformity, dissolution, and microbiological purity. Heavy metal testing is standard on all mineral ingredients. Batch documentation and COAs available for bulk and institutional buyers.
B2B and pharma partners
Contract manufacturing with custom calcium-to-magnesium ratios, zinc salt selection, D3 strength, and packaging. Private label formulations ready for your brand. Bulk supply for distributors, hospital chains, and export markets.
Product Specifications
| Parameter | Details |
|---|---|
| Active Ingredient | Calcium (carbonate or citrate) + Magnesium (oxide or citrate) + Zinc (gluconate or citrate) + Cholecalciferol (D3) |
| Dosage Form | Film-coated tablet / Chewable tablet |
| Pack sizes | 30s, 60s, 90s bottle; bulk jars Blister pack of 10 tablets |
| Shelf Life | 24 months |
| Storage | Cool, dry place, away from sunlight |
Custom strengths and ratios available for B2B clients.
Frequently Asked Questions
Carbonate needs stomach acid to dissolve it works fine for most adults when taken with food, and it’s cost-effective. Citrate doesn’t need acid, which makes it the better pick for elderly patients or anyone on PPIs. If the product is aimed at a general adult population, carbonate is adequate. If it’s targeting older adults specifically, citrate makes more sense clinically.
2:1 is standard and well tolerated. A 1:1 ratio has a better GI tolerance profile for sensitive individuals. Which one depends on the target demographic? Both can be formulated — mention the preference during enquiry.
At standard supplemental doses calcium up to 1,000 mg/day, magnesium up to 400 mg/day, zinc up to 15 mg/day, D3 up to 2,000 IU/day daily use is safe for most adults. Therapeutic D3 correction at higher doses should be supervised. Zinc above 40 mg/day over extended periods interferes with copper absorption; formulations at that level typically include copper.
Yes. Hospital pharmacies, government health programs, institutional buyers. GMP certificates, batch records, and COAs as standard.