Calcium Complete — Comprehensive Bone & Mineral Support*
Our Calcium Complete combines calcium with key co-factors—vitamin D₃, magnesium, and vitamin K₂—in softgels to support strong bones, promote bone density and mineralization, help maintain skeletal health, support efficient calcium absorption and utilization, promote muscle and nerve function, provide neuromuscular support, help maintain healthy fracture risk reduction in context, support osteocalcin activation and bone strength, promote vitamin D-enhanced intestinal calcium uptake, help maintain overall mineral balance, and support comprehensive bone, muscle, and skeletal wellness* — while respecting balanced nutrient formulation. Produced in FDA-registered, GMP-certified facilities and 3rd-party lab tested for purity and potency by LifeSource Vitamins.
Research-Driven & Verified Product.
Explore the clinical research, ingredient science, and global evidence supporting this product below.
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. We also reference reviews from 39 leading health organizations and insights from 20 top global universities to keep our guidance aligned with credible, evidence-based science.* Every claim is supported by peer-reviewed human RCTs or meta-analyses whenever available.
Clinically Studied Benefits
✓ Supports reduction in total and hip fracture risk with calcium + vitamin D* — Calcium plus vitamin D supplementation lowers fracture incidence in older adults in RCTs and meta-analyses.*
NIH/PMC — Weaver et al., 2015
✓ Promotes enhanced calcium absorption and bone mineralization with vitamin D* — Vitamin D regulates intestinal calcium transport and supports skeletal health in clinical overviews.*
NIH/ODS — Vitamin D Fact Sheet
✓ Helps maintain bone mineral density with magnesium support* — Magnesium status associates with BMD and supports vitamin D activation in human studies.*
NIH/ODS — Magnesium Fact Sheet
✓ Supports higher hip BMD with adequate magnesium intake* — Human data show positive associations between magnesium status and bone outcomes.*
NIH/PubMed — Groenendijk et al., 2022
✓ Promotes reduced age-related bone density decline with vitamin K₂* — Long-term MK-7 supplementation attenuated BMD decline and improved bone-strength indices in postmenopausal women.*
NIH/PubMed — Knapen et al., 2013
✓ Supports osteocalcin carboxylation directing calcium to bone* — Vitamin K₂ activates osteocalcin for proper mineral deposition in skeletal tissue.*
NIH/PubMed — Shearer et al., 2010
✓ Helps maintain fracture benefit primarily with calcium + vitamin D together* — Evidence synthesis shows limited benefit from vitamin D alone; combination supports outcomes in older populations.*
NIH/PMC — Zhao et al., 2018
✓ Supports comparable bioavailability with calcium forms as directed* — Carbonate and citrate show similar absorption when taken appropriately, with timing considerations.*
NIH/ODS — Calcium Fact Sheet
Additional / Promising Evidence
✓ May support modest fall reduction in older adults* — Calcium + vitamin D associated with small reductions in falls in some analyses, especially in low vitamin D or institutional settings.*
NIH/PMC — Zhao et al., 2018
✓ Contributes to favorable bone measures with adequate calcium intake* — Dietary patterns with sufficient calcium associate with better bone outcomes in human data.*
NIH/PubMed — Park et al., 2011
✓ Promotes complementary roles in bone remodeling synergy* — Calcium with D, Mg, and K₂ supports integrated skeletal health in nutrient overviews.*
NIH/ODS — Calcium Fact Sheet
✓ Supports tooth and enamel mineralization* — Adequate calcium and vitamin D aid tooth mineral maintenance.*
NIH/ODS — Calcium Fact Sheet
✓ Contributes to neuromuscular performance support* — Calcium and magnesium status supports normal contraction/relaxation and signaling.*
NIH/ODS — Magnesium Fact Sheet
✓ Aligns with personalization based on diet/status* — Benefit magnitude depends on baseline intake and age; stay within RDA/UL guidelines.*
NIH/ODS — Calcium Fact Sheet
University-Led & Academic Studies
✓ Supports vitamin D roles in bone and fracture context* — Harvard T.H. Chan School provides evidence-based overviews on vitamin D for skeletal health.*
Harvard Nutrition Source — Vitamin D
✓ Promotes calcium intake guidance for bone outcomes* — Harvard T.H. Chan summarizes calcium sources and skeletal benefits.*
Harvard Nutrition Source — Calcium
✓ Supports mineral evidence for skeletal health* — Oregon State University – Linus Pauling Institute reviews calcium and magnesium in bone contexts.*
LPI — Calcium
Global Evidence & Reviews
✓ Confirms calcium + vitamin D fracture benefits* — Cochrane reviews show combination lowers incidence vs vitamin D alone in older populations.*
Cochrane Review — 2014
✓ Supports calcium and magnesium intake/safety summaries* — NIH/ODS monographs detail functions, absorption, and interactions.*
NIH/ODS — Calcium Fact Sheet
✓ Aligns with vitamin D and mineral bone health evidence* — Global authoritative overviews emphasize combined roles in skeletal support.*
NIH/ODS — Vitamin D Fact Sheet
We monitor research from leading institutions —
Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge, Oxford, Stanford, Yale, Tufts, University of Florida, Oregon State University – Linus Pauling Institute, Columbia, Cornell, Ohio State — to align with credible science.*
Key Ingredients
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Calcium* — Elemental from complex of carbonate & citrate — Supports bone strength and mineralization.*
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Magnesium* — Elemental from complex of oxide & citrate — Supports muscle relaxation and nerve function.*
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Vitamin D₃ (as cholecalciferol)* — Enhances calcium absorption and bone health.*
-
Vitamin K₂ (as menaquinone)* — Supports osteocalcin activation for bone strength.*
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*
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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
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!*
