NaturesPlus Cal/Mag 500/250 mg supplement bottle
NaturesPlus

Cal/Mag 500/250 mg

What We Researched
2 active ingredients analyzed · 11 inactive ingredients decoded · 1 retailer compared · Last updated: Mar 2026
100
Product Score Excellent
59
Brand Score Poor

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Calcium (as Calcium Soy Amino Acid Chelate/Complex) 500 mg 38%
Magnesium (as Magnesium Soy Amino Acid Chelate) 250 mg 60%
Bioavailability Excellent

Absorption Rating

  • Calcium (as Calcium Soy Amino Acid Chelate/Complex) Good
  • Magnesium (as Magnesium Soy Amino Acid Chelate) Good
Other Ingredients Excellent

Fillers & Additives

  • Calcium Carbonate
  • Magnesium Oxide
  • Stearic Acid
  • Microcrystalline Cellulose
  • Cellulose
  • Di-Calcium Phosphate
  • Carob
  • Silica
  • Magnesium Stearate
  • isolated Soy Protein
  • Pharmaceutical Glaze
Efficacy Excellent

Dosage Analysis

  • Calcium (as Calcium Soy Amino Acid Chelate/Complex) 500 mg Effective
  • Magnesium (as Magnesium Soy Amino Acid Chelate) 250 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Calcium (as Calcium Soy Amino Acid Chelate/Complex) 500 mg 38%
Magnesium (as Magnesium Soy Amino Acid Chelate) 250 mg 60%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Calcium Carbonate Safe

Acts as a filler and provides supplemental calcium.

Magnesium Oxide Generally_safe

It is used to provide magnesium, an essential mineral.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Di-Calcium Phosphate Generally_safe

It is used as a filler or source of calcium and phosphorus.

Carob Safe

It is used as a natural colorant or flavoring agent.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

isolated Soy Protein Unknown
Pharmaceutical Glaze Generally_safe

It is used to coat tablets or capsules for easier swallowing or controlled release.

Price Comparison

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
NaturesPlus

Founded 1972 · Melville, New York, United States · 420 products · naturesplus.com

Transparency

3 claims
Third Party Testing Claim — Claimed
In House Testing — Claimed

Violation History

1 incident
Recall Keto Living Sugar Control Capsules2022-05-06Source
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Frequently Asked Questions
Is NaturesPlus Cal/Mag 500/250 mg a good supplement?

NaturesPlus Cal/Mag 500/250 mg received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 2 active ingredients with 90 servings per container. Of the 11 inactive ingredients, 7 are rated safe and 0 are flagged for review. The manufacturer, NaturesPlus, holds a brand trust score of 59/100.

What are the ingredients in NaturesPlus Cal/Mag 500/250 mg?

NaturesPlus Cal/Mag 500/250 mg contains 2 active ingredients: Calcium (as Calcium Soy Amino Acid Chelate/Complex) (500 mg), Magnesium (as Magnesium Soy Amino Acid Chelate) (250 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is NaturesPlus Cal/Mag 500/250 mg safe to take?

NaturesPlus Cal/Mag 500/250 mg has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is NaturesPlus a trustworthy supplement brand?

NaturesPlus receives a brand trust score of 59/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1972 and headquartered in Melville, New York, United States, the company offers 420 products in their lineup. Note: NaturesPlus has 1 historical regulatory incident on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.