Source Naturals Coral Calcium/Magnesium 2:1 Ratio supplement bottle
Source Naturals

Coral Calcium/Magnesium 2:1 Ratio

What We Researched
4 active ingredients analyzed · 4 inactive ingredients decoded · 1 brand certification checked · 1 retailer compared · Last updated: Mar 2026
92
Product Score Excellent
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin D3 (as Cholecalciferol) 200 IU 50%
Calcium (as Coral Calcium) 600 mg 60%
Magnesium (as Amino Acid Complex, Magnesium Citrate, Magnesium Oxide) 300 mg 75%
Coral Calcium 1.8 g
Bioavailability Excellent

Absorption Rating

  • Vitamin D3 (as Cholecalciferol) Good
  • Calcium (as Coral Calcium) Good
  • Magnesium (as Amino Acid Complex, Magnesium Citrate, Magnesium Oxide) Good
  • Coral Calcium Good
Other Ingredients Excellent

Fillers & Additives

  • Gelatin
  • Microcrystalline Cellulose
  • Silica
  • Magnesium Stearate
Efficacy Good

Dosage Analysis

  • Vitamin D3 (as Cholecalciferol) 200 IU Under-dosed
  • Calcium (as Coral Calcium) 600 mg Effective
  • Magnesium (as Amino Acid Complex, Magnesium Citrate, Magnesium Oxide) 300 mg Effective
  • Coral Calcium 1.8 g High

Supplement Facts

Ingredient Amount % Daily Value
Vitamin D3 (as Cholecalciferol) 200 IU 50%
Calcium (as Coral Calcium) 600 mg 60%
Magnesium (as Amino Acid Complex, Magnesium Citrate, Magnesium Oxide) 300 mg 75%
Coral Calcium 1.8 g

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Microcrystalline Cellulose Safe

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

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

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
Source Naturals

Founded 1982 · Scotts Valley, CA, USA · 837 products · sourcenaturals.com/

Certifications

1 certification
Fda Gmp Inspections Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source
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Frequently Asked Questions
Is Source Naturals Coral Calcium/Magnesium 2:1 Ratio a good supplement?

Source Naturals Coral Calcium/Magnesium 2:1 Ratio received a product quality score of 92/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 4 active ingredients with 60 servings per container. All 4 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Source Naturals, holds a brand trust score of 66/100 with 1 verified certifications including Fda Gmp Inspections.

What are the ingredients in Source Naturals Coral Calcium/Magnesium 2:1 Ratio?

Source Naturals Coral Calcium/Magnesium 2:1 Ratio contains 4 active ingredients: Vitamin D3 (as Cholecalciferol) (200 IU), Calcium (as Coral Calcium) (600 mg), Magnesium (as Amino Acid Complex, Magnesium Citrate, Magnesium Oxide) (300 mg), Coral Calcium (1.8 g). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Source Naturals Coral Calcium/Magnesium 2:1 Ratio safe to take?

Source Naturals Coral Calcium/Magnesium 2:1 Ratio has been analyzed for ingredient safety across all its components. All 4 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Source Naturals a trustworthy supplement brand?

Source Naturals receives a brand trust score of 66/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1982 and headquartered in Scotts Valley, CA, USA, the company offers 837 products in their lineup. They hold 1 verified certifications including Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.

What is magnesium good for?

Magnesium Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding magnesium good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

How much magnesium per day?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What is zinc good for?

Zinc Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding zinc good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

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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.