Metagenics Bone Builder® With Magnesium supplement bottle
Metagenics

Bone Builder® With Magnesium Review

What We Researched
7 active ingredients analyzed · 7 inactive ingredients decoded · 8 brand certifications checked · Last updated: Aug 2026
92
Product Score Excellent
100
Brand Score Excellent

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin D (as cholecalciferol) (600 IU) 15 mcg 75%
Calcium(as MCHC and dicalcium phosphate) 620 mg 48%
Phosphorus(as MCHC and dicalcium phosphate) 350 mg 28%
Magnesium (as magnesium citrate,magnesium aspartate, and magnesium bis-glycinate) 300 mg 71%
Microcrystalline HydroxyapatiteConcentrate (MCHC) 1.5 g ***
Bioavailability Excellent

Absorption Rating

  • Vitamin D (as cholecalciferol) (600 IU) Good
  • Calcium(as MCHC and dicalcium phosphate) Fair
  • Phosphorus(as MCHC and dicalcium phosphate) Good
  • Magnesium (as magnesium citrate,magnesium aspartate, and magnesium bis-glycinate) Good
  • Microcrystalline HydroxyapatiteConcentrate (MCHC) Good
Other Ingredients Excellent

Fillers & Additives

  • Microcrystalline Cellulose
  • Hypromellose
  • Medium Chain Triglycerides
  • Sodium Starch Glycolate
  • Vegetable Stearic Acid
  • Hydroxypropyl Cellulose
  • Silica
Efficacy Very Good

Dosage Analysis

  • Vitamin D (as cholecalciferol) (600 IU) 15 mcg Effective
  • Calcium(as MCHC and dicalcium phosphate) 620 mg Effective
  • Phosphorus(as MCHC and dicalcium phosphate) 350 mg Under-dosed
  • Magnesium (as magnesium citrate,magnesium aspartate, and magnesium bis-glycinate) 300 mg Effective
  • Microcrystalline HydroxyapatiteConcentrate (MCHC) 1.5 g Effective

Supplement Facts

Ingredient Amount % Daily Value
Total Carbohydrate 1 g <1%**
Dietary Fiber 1 g 4%**
Vitamin D (as cholecalciferol) (600 IU) 15 mcg 75%
Calcium(as MCHC and dicalcium phosphate) 620 mg 48%
Phosphorus(as MCHC and dicalcium phosphate) 350 mg 28%
Magnesium (as magnesium citrate,magnesium aspartate, and magnesium bis-glycinate) 300 mg 71%
Microcrystalline HydroxyapatiteConcentrate (MCHC) 1.5 g ***

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Microcrystalline Cellulose Safe

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

Hypromellose Safe

Forms vegetarian capsule shells. Dissolves easily in the stomach.

Medium Chain Triglycerides Safe

Enhances absorption of fat-soluble vitamins.

Sodium Starch Glycolate Safe

Helps tablets break apart quickly for faster absorption.

Vegetable Stearic Acid Generally_safe

It is used to prevent ingredients from sticking to manufacturing equipment.

Hydroxypropyl Cellulose Safe

Binds tablet ingredients and can form tablet coatings.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Brand Trust Report
Metagenics

Founded 1983 · Aliso Viejo, California, United States · 429 products · metagenics.com

Certifications

8 certifications
B Corp Certified Verified Source
Gluten Free Gfco Verified Source
Non Gmo Project Verified Source
Fda Gmp Inspections Verified Source
Nsf Gmp Verified Source
Usp Verified Verified Source
NSF Certified Verified
Gluten-Free Certified Verified

Transparency

6 claims
Third Party Testing Claim — Verified Source
Coa Availability — Claimed Source
In House Testing — Verified Source
Testing Lab Disclosure — True
Contains Proprietary Blend — True

Violation History

3 incidents
Fda Warning A structure/function claim for 'Metagenics HerWellness Naturally Balanced' was deemed by the FDA to suggest the product is intended for use as a drug.2025-02-07Source
Prop 65 Lead2019-05-30Source
Fda Warning Mislabeling of 14 products as medical foods and making unapproved new drug claims.2013-08-13Source
Related Supplements
Frequently Asked Questions
Is Metagenics Bone Builder® With Magnesium a good supplement?

Metagenics Bone Builder® With Magnesium 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 7 active ingredients with 30 servings per container. Of the 7 inactive ingredients, 6 are rated safe and 0 are flagged for review. The manufacturer, Metagenics, holds a brand trust score of 100/100 with 8 verified certifications including B Corp Certified, Gluten Free Gfco, Non Gmo Project, Fda Gmp Inspections.

What are the ingredients in Metagenics Bone Builder® With Magnesium?

Metagenics Bone Builder® With Magnesium contains 7 active ingredients: Total Carbohydrate (1 g), Dietary Fiber (1 g), Vitamin D (as cholecalciferol) (600 IU) (15 mcg), Calcium(as MCHC and dicalcium phosphate) (620 mg), Phosphorus(as MCHC and dicalcium phosphate) (350 mg), Magnesium (as magnesium citrate,magnesium aspartate, and magnesium bis-glycinate) (300 mg), and 1 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Metagenics Bone Builder® With Magnesium safe to take?

Metagenics Bone Builder® With Magnesium 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 Metagenics a trustworthy supplement brand?

Metagenics receives a brand trust score of 100/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1983 and headquartered in Aliso Viejo, California, United States, the company offers 429 products in their lineup. They hold 8 verified certifications including B Corp Certified, Gluten Free Gfco, Non Gmo Project, Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Metagenics has 3 historical regulatory incidents on record, which are factored into the trust score.

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 150,000 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 150,000 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 — read our methodology. 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.