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Best Calcium products by transparent scoring (2026)
Single-ingredient products scored by public rules: dose fit, label transparency, data verification, company transparency, third-party testing. Not a measure of efficacy or safety. No paid placement.
Products ranked: 666 · Reference range: 1,300 – 2,500 mg (source) · Updated 2026-10-30
Dose fit 40 · Label transparency 20 · Data verification 15 · Company transparency 15 · Third-party test 10 — Methodology · Calcium →
| Rank | Product | Per day | Score | Breakdown | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | ActivEssentials With Calcium XYMOGEN · US NIH DSLD |
2,300 mg | 87.0 | Breakdown
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| 2 tie |
Absorbable Calcium Plus Vitamin D3 Nature's Bounty · US NIH DSLD below_ref |
1,200 mg | 86.9 | Breakdown
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| 2 tie |
Absorbable Calcium With Vitamin D3 Vitamin World · US NIH DSLD below_ref |
1,200 mg | 86.9 | Breakdown
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| 2 tie |
Calcium 600 mg + Vitamin D3 Vitamin World · US NIH DSLD below_ref |
1,200 mg | 86.9 | Breakdown
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| 2 tie |
Calcium Magnesium Citrate With Vitamin D3 Natural Strawberry Flavor Vitamin World · US NIH DSLD below_ref |
1,200 mg | 86.9 | Breakdown
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| 2 tie |
Calcium With Vitamin D3 Vitamin World · US NIH DSLD below_ref |
1,200 mg | 86.9 | Breakdown
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| 7 tie |
Alka-Seltzer Extra Strength Heartburn Relief Chews Assorted Fruit Bayer · US NIH DSLD |
1,502 mg | 85.0 | Breakdown
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| 7 tie |
Calcium with Vitamin D3 Pure Encapsulations · US NIH DSLD |
1,350 mg | 85.0 | Breakdown
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| 9 tie |
Calcium 600 With Vitamin D3 Nature's Bounty · US NIH DSLD below_ref |
1,200 mg | 84.9 | Breakdown
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| 9 tie |
Calcium Citrate 300 mg The Vitamin Shoppe · US NIH DSLD below_ref |
1,200 mg | 84.9 | Breakdown
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| 11 | Coral Calcium 500 mg + Vitamin D3 Vitamin World · US NIH DSLD below_ref |
1,110 mg | 84.2 | Breakdown
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| 12 tie |
Calcium 1200 mg Plus Vitamin D3 Sundown Naturals · US NIH DSLD below_ref |
1,200 mg | 81.9 | Breakdown
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| 12 tie |
Calcium 600 mg plus Vitamin D3 Sundown Naturals · US NIH DSLD below_ref |
1,200 mg | 81.9 | Breakdown
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| 12 tie |
Calcium 600+Vitamin D3 Puritan's Pride · US NIH DSLD below_ref |
1,200 mg | 81.9 | Breakdown
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| 12 tie |
Calcium Plus 21st Century · US NIH DSLD below_ref |
1,200 mg | 81.9 | Breakdown
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| 16 tie |
Absorbable Calcium With Vitamin D3 Nature's Bounty · US NIH DSLD below_ref |
1,000 mg | 80.8 | Breakdown
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| 16 tie |
Calcium 1000 The Vitamin Shoppe · US NIH DSLD below_ref |
1,000 mg | 80.8 | Breakdown
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| 16 tie |
Calcium Magnesium Zinc with Vitamin D3 Nature's Bounty · US NIH DSLD below_ref |
1,000 mg | 80.8 | Breakdown
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| 16 tie |
Calcium Magnesium plus D3 Vitamin World · US NIH DSLD below_ref |
1,000 mg | 80.8 | Breakdown
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| 16 tie |
Calcium and Magnesium Solaray · US NIH DSLD below_ref |
1,000 mg | 80.8 | Breakdown
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| 21 | Calcium 500 mg With Vitamin D3 Nature's Bounty · US NIH DSLD below_ref |
1,000 mg | 78.8 | Breakdown
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| 22 tie |
Alive! Calcium + D3 Gummies Nature's Way · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 22 tie |
Calcium & Magnesium Nature's Way · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 22 tie |
Calcium 1000 mg with Vitamin D3 Sundown Naturals · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 22 tie |
Calcium Bone Formula Nature's Way · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 22 tie |
Calcium Citrate Nature's Way · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 22 tie |
Calcium Complex Nature's Way · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 22 tie |
Calcium Magnesium Solgar · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 22 tie |
Calcium Magnesium Plus Boron Bluebonnet · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 22 tie |
Calcium Magnesium Plus Zinc Bluebonnet · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 22 tie |
Calcium Magnesium Potassium Bluebonnet · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 22 tie |
Calcium Magnesium Zinc Softgels Bluebonnet · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 22 tie |
Calcium Magnesium plus Boron Solgar · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 22 tie |
Calcium Magnesium with Boron Puritan's Pride · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 22 tie |
Calcium+D3 AdvoCare · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 22 tie |
Chelated Calcium Solgar · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 22 tie |
Target-Mins Calcium Caps With Boron Country Life · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 22 tie |
Target-Mins Calcium Magnesium Zinc Country Life · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 22 tie |
Target-Mins Calcium-Magnesium Complex With Vitamin D3 Country Life · US NIH DSLD below_ref |
1,000 mg | 75.8 | Breakdown
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| 40 tie |
Calcium Citrate 450 mg ProCare Health · US NIH DSLD |
1,350 mg | 75.0 | Breakdown
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| 40 tie |
Calcium Phosphate Powder Freeda · US NIH DSLD |
1,400 mg | 75.0 | Breakdown
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| 40 tie |
Calcium Plus OL Olympian Labs The Optimal Blend · US NIH DSLD |
2,000 mg | 75.0 | Breakdown
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| 40 tie |
Calcium Plus Blueberry Buried Treasure · US NIH DSLD |
2,000 mg | 75.0 | Breakdown
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| 40 tie |
Calcium Plus French Vanilla Buried Treasure · US NIH DSLD |
2,000 mg | 75.0 | Breakdown
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| 40 tie |
Chewable Calcium Citrate 500 mg Calcium 500 IU Vitamin D3 Chocolate Bariatric Advantage · US NIH DSLD |
1,500 mg | 75.0 | Breakdown
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| 40 tie |
Chewable Calcium Citrate 500 mg Calcium 500 IU Vitamin D3 Cinnamon Bariatric Advantage · US NIH DSLD |
1,500 mg | 75.0 | Breakdown
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| 40 tie |
Chewable Calcium Citrate 500 mg Calcium 500 IU Vitamin D3 Wild Cherry Bariatric Advantage · US NIH DSLD |
1,500 mg | 75.0 | Breakdown
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| 48 tie |
Calcium Citrate Village Vitality · US NIH DSLD below_ref |
1,260 mg | 73.8 | Breakdown
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| 48 tie |
Calcium Plus D Caramel Viactiv · US NIH DSLD below_ref |
1,000 mg | 73.8 | Breakdown
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| 48 tie |
Calcium Plus D Milk Chocolate Viactiv · US NIH DSLD below_ref |
1,000 mg | 73.8 | Breakdown
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| 51 tie |
Activated Coral Calcium Nature's Plus · US NIH DSLD |
1,345 mg | 72.0 | Breakdown
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| 51 tie |
Calcium Vitabase · US NIH DSLD |
2,000 mg | 72.0 | Breakdown
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| 53 tie |
CCM Calcium Source Naturals · US NIH DSLD below_ref |
1,200 mg | 71.9 | Breakdown
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| 53 tie |
Calcium Finest Nutrition · US NIH DSLD below_ref |
1,200 mg | 71.9 | Breakdown
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| 53 tie |
Calcium 1,200 mg plus D3 5,000 IU Nature's Truth · US NIH DSLD below_ref |
1,200 mg | 71.9 | Breakdown
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| 53 tie |
Calcium 600 mg + D3 Nature's Truth · US NIH DSLD below_ref |
1,200 mg | 71.9 | Breakdown
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| 53 tie |
Calcium Citrate Physician's Preference · US NIH DSLD below_ref |
1,200 mg | 71.9 | Breakdown
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| 53 tie |
Calcium Citrate Caps Physician's Preference · US NIH DSLD below_ref |
1,200 mg | 71.9 | Breakdown
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| 53 tie |
Calcium with Vitamin D Noor Vitamins · US NIH DSLD below_ref |
1,200 mg | 71.9 | Breakdown
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| 53 tie |
Calcium with Vitamin D3 AN Amazing Nutrition Amazing Formulas · US NIH DSLD below_ref |
1,200 mg | 71.9 | Breakdown
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| 53 tie |
Calcium with Vitamin D3 Pure Naturals · US NIH DSLD below_ref |
1,200 mg | 71.9 | Breakdown
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| 62 | Calcium Pyruvate Allergy Research Group · US NIH DSLD below_ref |
840 mg | 70.8 | Breakdown
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| 63 tie |
Calcium 600 Rugby · US NIH DSLD below_ref |
1,200 mg | 69.9 | Breakdown
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| 63 tie |
Calcium 600 mg Major Pharmaceuticals · US NIH DSLD below_ref |
1,200 mg | 69.9 | Breakdown
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| 63 tie |
Calcium+D up&up · US NIH DSLD below_ref |
1,200 mg | 69.9 | Breakdown
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| 66 | OsteoPrime Plus Calcium & Magnesium Nature's Way · US NIH DSLD below_ref |
800 mg | 69.6 | Breakdown
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| 67 | Calcium Citrate with Vitamin D3 Spring Valley · US NIH DSLD below_ref |
630 mg | 69.4 | Breakdown
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| 68 tie |
CALVIN TABLET 600 MG MEDISPEC (M) SDN. BHD. · Malaysia NPRA |
1,500 mg | 69.0 | Breakdown
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| 68 tie |
Mineral Powder Global Health Trax Canada Inc. · Health Canada LNHPD |
1,500 mg | 69.0 | Breakdown
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| 68 tie |
North Coast Naturals - Organic Calcium (Powder) Fit Foods LP · Health Canada LNHPD |
1,500 mg | 69.0 | Breakdown
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| 71 | Calcium Gummies With Vitamin D3 Vitamin World · US NIH DSLD below_ref |
600 mg | 68.5 | Breakdown
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| 72 | OSCAL123 CALCIUM MILK Plus Caplet NATURES SCIENCEUTICALS SDN BHD · Malaysia NPRA below_ref |
1,278 mg | 68.3 | Breakdown
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| 73 | Calcium Complex Bronson · US NIH DSLD below_ref |
1,125 mg | 67.6 | Breakdown
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| 74 tie |
Calcium 1250mg Chewable Fruit-Flavoured Tablets Alison Pharmaceutical Manufacturing Inc. · Health Canada LNHPD below_ref |
1,250 mg | 67.5 | Breakdown
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| 74 tie |
Calcium 1250mg Chewable Fruit-Flavoured Tablets Rayan Pharma Inc. · Health Canada LNHPD below_ref |
1,250 mg | 67.5 | Breakdown
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| 74 tie |
Calcium with Vitamin D Celex Laboratories Inc. · Health Canada LNHPD below_ref |
1,250 mg | 67.5 | Breakdown
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| 74 tie |
Chewable Vanilla-flavoured Calcium 1250mg Tablets Alison Pharmaceutical Manufacturing Inc. · Health Canada LNHPD below_ref |
1,250 mg | 67.5 | Breakdown
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| 74 tie |
Chewable Vanilla-flavoured Calcium 1250mg Tablets Rayan Pharma Inc. · Health Canada LNHPD below_ref |
1,250 mg | 67.5 | Breakdown
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| 74 tie |
LIFETIME LIQUID CALCIUM MAGNESIUM CITRATE with VITAMIN D - NATURAL BLUEBERRY FLAVOUR and NATURAL PINA COLADA FLAVOUR Nutritional Specialties Inc. · Health Canada LNHPD below_ref |
1,250 mg | 67.5 | Breakdown
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| 80 | Calcium 750mg Magnésium 300 mg + Vitamine D 400 UI Liquide JAMP Pharma Corporation · Health Canada LNHPD below_ref |
750 mg | 67.1 | Breakdown
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| 81 | Calcium Lactate BulkSupplements.com · US NIH DSLD below_ref |
1,040 mg | 67.0 | Breakdown
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| 82 tie |
Algae-Based Calcium 1,000 mg Super Nutrition · US NIH DSLD below_ref |
1,000 mg | 65.8 | Breakdown
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| 82 tie |
Calcium Integrative Therapeutics · US NIH DSLD below_ref |
1,000 mg | 65.8 | Breakdown
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| 82 tie |
Calcium & Magnesium Windmill Natural Vitamins · US NIH DSLD below_ref |
1,000 mg | 65.8 | Breakdown
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| 82 tie |
Calcium & Magnesium NOW · US NIH DSLD below_ref |
1,000 mg | 65.8 | Breakdown
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| 82 tie |
Calcium Carbonate BulkSupplements.com · US NIH DSLD below_ref |
1,000 mg | 65.8 | Breakdown
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| 82 tie |
Calcium Citrate Freeda · US NIH DSLD below_ref |
1,000 mg | 65.8 | Breakdown
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| 82 tie |
Calcium Citrate with Vitamin D3 PhysioLogics · US NIH DSLD below_ref |
1,000 mg | 65.8 | Breakdown
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| 82 tie |
Calcium Hydroxyapatite Caps NOW · US NIH DSLD below_ref |
1,000 mg | 65.8 | Breakdown
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| 82 tie |
Calcium Magnesium Zinc Nature's Truth · US NIH DSLD below_ref |
1,000 mg | 65.8 | Breakdown
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| 82 tie |
Calcium Magnesium with Vitamin D and Boron DC · US NIH DSLD below_ref |
1,000 mg | 65.8 | Breakdown
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| 82 tie |
Calcium Plus Calcium & Magnesium Altrum · US NIH DSLD below_ref |
1,000 mg | 65.8 | Breakdown
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| 82 tie |
Calcium Zinc Magnesium Plus Copper Universal Nutrition / Universal Naturals · US NIH DSLD below_ref |
1,000 mg | 65.8 | Breakdown
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| 82 tie |
Calcium with Multi-Minerals Vitacost · US NIH DSLD below_ref |
1,000 mg | 65.8 | Breakdown
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| 82 tie |
Coral Calcium Plus BIOVEA · US NIH DSLD below_ref |
1,000 mg | 65.8 | Breakdown
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| 82 tie |
Vegan Plant-Based Calcium 1,000 mg PlantFusion · US NIH DSLD below_ref |
1,000 mg | 65.8 | Breakdown
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| 97 tie |
Calcium Adult Gummies Nature Made · US NIH DSLD below_ref |
500 mg | 65.4 | Breakdown
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| 97 tie |
Calcium Gummy Fruit & Cream GNC · US NIH DSLD below_ref |
500 mg | 65.4 | Breakdown
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| 97 tie |
Calcium Gummy Vitamins CVS Pharmacy · US NIH DSLD below_ref |
500 mg | 65.4 | Breakdown
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| 100 | Maximum Calcium 650mg GFR Pharma Ltd. · Health Canada LNHPD below_ref |
650 mg | 64.0 | Breakdown
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For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.