Calcium Complete — Comprehensive Bone & Mineral Support*
Balanced calcium complex formulated to support bone strength, density, and muscle/nerve function.* Combines calcium with key co-factors—vitamin D₃, magnesium, and vitamin K₂—for efficient absorption and utilization.* Produced in FDA-registered, GMP-certified facilities and
3rd-party lab tested
for purity, potency & label accuracy.*
Research Promise: At LifeSource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by human clinical studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts available in the National Library of Medicine (NLM) PubMed Central (PMC) when available. In addition, we reference reviews from 39 leading health organizations and insights from 20 top global universities to ensure our guidance aligns with credible science.*
Clinically Studied Benefits (with research)
Supported by peer-reviewed studies and NIH resources (PubMed/PMC/ODS).*
- Fracture risk (older adults) — Meta-analysis of RCTs shows lower total and hip fractures with calcium + vitamin D vs control. (NLM/PMC — Weaver, 2015)
- Vitamin D → calcium absorption — Regulates intestinal Ca transport and bone mineralization. (NLM/PMC — Christakos, 2011)
- Magnesium & bone — Mg status associates with BMD; supports vitamin D activation. (NLM/PMC — Rondanelli, 2021)
- Higher Mg intake → higher hip BMD — Human data show positive associations. (NIH/PubMed — Groenendijk, 2022)
- Vitamin K₂ (MK-7) — 3-year RCT reduced age-related decline in BMD/bone-strength indices. (NIH/PubMed — Knapen, 2013)
- Mechanism: K-dependent osteocalcin — Vitamin K supports carboxylation directing calcium into bone. (NIH/PubMed — Shearer, 2010)
- Vitamin D alone often limited — Evidence synthesis: fracture benefit appears mainly with Ca + D together. (NLM/PMC — Zhao, 2018)
- Forms & timing — Carbonate/citrate show comparable bioavailability when taken as directed; calcium essential for muscle/nerve function. (NIH ODS — Calcium)
- Medication timing — Separate calcium from certain medicines to avoid reduced absorption. (MedlinePlus — Calcium Carbonate)
Additional Potential Benefits*
- Falls — Context-dependent reductions in older adults, especially with low vitamin D or institutional living. (NLM/PMC — Zhao, 2018)
- Dietary patterns & BMD — Adequate Ca intake associates with favorable bone measures. (NIH/PubMed — Park, 2011)
- Whole-formula synergy — Ca with D, Mg, and K₂ plays complementary roles in remodeling. (NIH ODS — Calcium)
- Teeth & enamel — Ca and vitamin D support tooth mineralization. (NIH ODS — Calcium)
- Neuromuscular performance — Adequate Ca/Mg status supports normal contraction/relaxation and signaling. (NIH ODS — Magnesium)
- Personalization — Benefit magnitude depends on baseline diet/status and age; stay within RDA/UL. (NIH ODS — Calcium)
University Studies
- Harvard T.H. Chan — Vitamin D — Overview of vitamin D’s role in bone/fracture context. (Harvard Nutrition Source)
- Harvard T.H. Chan — Calcium — Guidance on calcium intake, sources, bone outcomes. (Harvard Nutrition Source)
- Oregon State University — Linus Pauling Institute — Evidence reviews for calcium and magnesium in skeletal health. (LPI Calcium; LPI Magnesium)
Global Evidence & Authoritative Reviews
- Cochrane Review — Vitamin D with calcium lowers fracture incidence vs vitamin D alone. (Cochrane, 2014)
- NIH Office of Dietary Supplements — Evidence-based intake ranges, ULs, and interactions for calcium & magnesium. (NIH ODS — Calcium; NIH ODS — Magnesium)
- Mayo & Cleveland Clinic — Patient overviews on calcium/vitamin D and bone health (useful for counseling/risks/interactions). (Mayo Clinic; Cleveland Clinic)
Institutional Monitoring: We monitor research from the world’s leading institutions — including Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge University, Oxford, Stanford, Yale, MIT, the University of Florida, Oregon State University – Linus Pauling Institute, Boston University, Cornell, Columbia, and Ohio State — to ensure our guidance remains aligned with the highest standards of credible science.*
Brief Benefit Bullets
- Helps maintain bone density; Ca + D reduce fracture risk in select older adults (meta-analyses)*
- Vitamin D supports calcium absorption & bone mineralization*
- Magnesium helps activate vitamin D and supports bone measures*
- Vitamin K₂ helps direct calcium into bones*
- Supports muscle contraction and nerve signaling*
- Balanced formula for absorption, utilization & comfort*
- Non-GMO; made in GMP facilities*
- Clean label — no wheat, gluten, soy, milk, egg, fish, shellfish, or sesame*
- 3rd-party lab tested for purity, potency & accuracy*
Suggested Use
Use as directed on the product label. If your regimen includes medicines that interact with minerals (e.g., certain antibiotics, thyroid medications), take calcium 1–2 hours apart.*
Product Specifications
- Serving Size — 2 capsules
- Servings Per Container — 90
- Vitamin D₃ — 8.3 mcg (333 IU) — 42% DV
- Calcium (elemental) — 266 mg (from 1,270 mg Calcium Citrate) — 20% DV
- Magnesium (elemental) — 133 mg (from 230 mg Magnesium Oxide) — 32% DV
- Vitamin K₂ (as menaquinone) — 30 mcg — †
- Other Ingredients — Bovine gelatin (BSE-free) capsule, stearic acid (vegetable), magnesium stearate (vegetable), silicon dioxide
- Allergen Statement — Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, or sesame. Produced in a GMP facility that processes other ingredients containing these allergens.
- Quality — Third-party tested for identity, potency & purity
Perfect For:
- Adults seeking comprehensive bone and mineral support*
- Individuals with low dietary calcium intake or limited sun exposure*
- Those who prefer a complete Ca + cofactor formula*
Safety & Warnings
Do not exceed suggested use. Separate calcium from certain medications by 1–2 hours.* If you have kidney disease, a history of kidney stones, or use thiazide diuretics/anticoagulants, consult your clinician first.* (MedlinePlus — Calcium; NIH ODS — Calcium)
Produced in FDA-registered, GMP-certified facilities and
3rd-party lab tested for purity & potency.*
LifeSource Vitamins — Proudly American — Since 1992
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Calcium Complete — comprehensive bone & mineral support with calcium, magnesium, vitamin D₃ & K₂. Supports absorption, density & muscle/nerve function. 3rd-party tested. Clinically Studied Ingredients — NIH/PubMed!*
