$20.30 $0.16 per serving
Product analysis
Cal-Mag Caps combines calcium, magnesium and trace minerals at a favorable serving cost. Magnesium is mostly supplied as oxide, making the source mixture less appealing than the presence of citrate and malate might suggest.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality44
The calcium mixture includes favorable citrate and malate sources, but their shares are unknown. Magnesium is mostly oxide, which limits the blend alongside the smaller citrate and malate contributions.
Ingredient Transparency82
Ingredient amounts and most forms are disclosed, making much of the serving easy to compare. Magnesium proportions are given, while calcium proportions and the separate blend contents remain unclear.
Value For Money64
Calcium, copper and manganese compare favorably on serving cost. Magnesium offers more moderate value, while the vitamin D and zinc contributions remain uncertain.
Customer Satisfaction88
Customer ratings are very favorable. The large number of ratings gives a broad picture of satisfaction.
Product Focus35
The formula combines several minerals across a broad range of nutritional uses. An undisclosed blend prevents a complete view of its active ingredients and limits conclusions about its focus.
- Format
Capsule - Container
- 240 Capsule(s)
- Per serving
- $0.16
- Customer rating
- 4.8 · 2,603 ratings
Goals
Impact
Highest effect
Magnesium · 250 mgCalcium · 500 mgVitamin D · 12.5 mcgCopper · 0.5 mgManganese · 2.5 mgZinc · 7.5 mg
Impact
High effect
Vitamin D · 12.5 mcgMagnesium · 250 mgZinc · 7.5 mg
Impact
Moderate effect
Vitamin D · 12.5 mcgMagnesium · 250 mg
Impact
Moderate effect
Magnesium · 250 mgVitamin D · 12.5 mcg
Impact
High effect
Magnesium · 250 mgZinc · 7.5 mgVitamin D · 12.5 mcg
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin D3 (Cholecalciferol) | 12.5 mcg | |
Calcium (Calcium Carbonate, Calcium Citrate, Calcium Malate) | 500 mg | |
Magnesium (Mag. Citrate, Mag. Malate, Mag. Oxide) | 250 mg | |
Zinc (L-OptiZinc Monomethionine) | 7.5 mg | |
Copper (Copper AAC) | 0.5 mg | |
Manganese (Manganese AAC) | 2.5 mg | |
Trace Mineral concentrate | 50 mg |
Each serving supplies 500 mg of calcium, a substantial amount, at a low cost per serving. Calcium comes from calcium carbonate, calcium citrate and calcium malate; their proportions are unknown. A flow agent is present.
How this ingredient is rated
Active Ingredient Quality & Bioavailability72
Calcium comes from calcium carbonate, calcium citrate and calcium malate; their proportions are unknown. The calcium amount is stated.
Calcium Form & Absorption Potential
Calcium comes from calcium carbonate, calcium citrate and calcium malate; their proportions are unknown.
Elemental Calcium Transparency
The label states 500 mg of calcium per serving.
Dose, Safety & Label Transparency84
A serving provides 500 mg of calcium. The ingredients include a flow agent.
Absorption-Optimized Serving Dose
A serving provides 500 mg of calcium, a substantial amount.
Formulation Purity & Additives
The ingredients include a flow agent.
Value100
The cost per serving is low.
Price Per Serving Efficiency
The cost per serving is low.
Manganese (Manganese AAC) · 2.5 mg OverallScore82
A serving supplies 2.5 mg of manganese at a low cost per serving. The source is manganese amino acid chelate.
How this ingredient is rated
Active Ingredient Quality & Bioavailability70
The manganese comes from manganese amino acid chelate.
Manganese Chemical Form
The manganese comes from manganese amino acid chelate.
Dose, Safety & Label Transparency86
The label states 2.5 mg of manganese per serving and names its source.
Manganese Dosage Efficacy & Safety
A serving provides 2.5 mg of manganese.
Elemental Weight Disclosure
The label states the manganese amount and its source.
Value100
The cost per serving is low.
Price per Serving vs. Median
The cost per serving is low.
Copper (Copper AAC) · 0.5 mg OverallScore57
Each serving provides 0.5 mg of copper at a moderate cost. The copper comes as copper amino acid chelate, with the specific amino acid unspecified. It also supplies 7.5 mg of zinc.
How this ingredient is rated
Active Ingredient Quality & Bioavailability58
The copper comes as copper amino acid chelate, with the specific amino acid unspecified. The copper amount and source are stated.
Copper Form Bioavailability
The copper comes as copper amino acid chelate, with the specific amino acid unspecified.
Elemental Copper Labeling Clarity
The label states 0.5 mg of copper and names its source.
Dose, Safety & Label Transparency44
The selected serving contains 0.5 mg of copper, a relatively small amount. The serving also contains 7.5 mg of zinc, giving a zinc-to-copper ratio of about 15:1.
Copper Dosage Safety & Efficacy
The selected serving contains 0.5 mg of copper, a relatively small amount.
Zinc-to-Copper Balance
The serving also contains 7.5 mg of zinc, giving a zinc-to-copper ratio of about 15:1.
Value80
The cost per serving is moderate.
Price Per Serving Efficiency
The cost per serving is moderate.
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- What is the impact of daily oral supplementation of vitamin D3 (cholecalciferol) plus calcium on the incidence of hip fracture in older people? A systematic review and meta-analysis.
- Calcium supplementation prevents seasonal bone loss and changes in biochemical markers of bone turnover in elderly New England women: a randomized placebo-controlled trial.
- The effects of calcium supplementation (milk powder or tablets) and exercise on bone density in postmenopausal women.
- The efficacy of calcium supplementation alone in elderly Thai women over a 2-year period: a randomized controlled trial.
- Calcium-enriched foods and bone mass growth in prepubertal girls: a randomized, double-blind, placebo-controlled trial.
- The Association between Dietary and Circulating Copper Levels and Osteoporosis: a Scoping Review.
- Association between dietary copper, iron, zinc, selenium intake and osteopenia or osteoporosis in elderly hypertensive patients: a retrospective cohort study.
- Associations of dietary copper intake with total bone mineral density and lumbar spine bone mineral density in American adults.
- The association between dietary mineral intake and bone mineral density: a cross-sectional study.
- Association between dietary copper intake and bone mineral density in children and adolescents aged 8-19 years: A cross-sectional study.
- Association between Serum Magnesium and Fractures: A Systematic Review and Meta-Analysis of Observational Studies.
- Bioabsorbable Magnesium-Based Materials Potential and Safety in Bone Surgery: A Systematic Review.
- Vascularized bone grafting fixed by biodegradable magnesium screw for treating osteonecrosis of the femoral head.
- An update on magnesium and bone health.
- Sex-specific differences in the association of magnesium intake with femoral neck bone mineral density among older adults.
- Risk of Environmental Chemicals on Bone Fractures Is Independent of Low Bone Mass in US Adults: Insights from 2017 to 2018 NHANES.
- The Manganese-Bone Connection: Investigating the Role of Manganese in Bone Health.
- Associations of multiple metals with bone mineral density: A population-based study in US adults.
- Sex-specific associations of urinary mixed-metal concentrations with femoral bone mineral density among older people: an NHANES (2017-2020) analysis.
- Relationship between blood manganese and bone mineral density and bone mineral content in adults: A population-based cross-sectional study.