Nordic Naturals Magnesium Complex, 90 Capsules supplement bottle
Nordic Naturals

Magnesium Complex, 90 Capsules

What We Researched
4 active ingredients analyzed · 5 inactive ingredients decoded · 7 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
81
Product Score Good
98
Brand Score Excellent

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Iron (naturally occurring) 1.9 mg 11%
Magnesium(as 34% magnesium bisglycinate chelate, 33% magnesiumlysinate glycinate chelate, and 33% magnesium malate) 225 mg 54%
Bioavailability Very Good

Absorption Rating

  • Iron (naturally occurring) Fair
  • Magnesium(as 34% magnesium bisglycinate chelate, 33% magnesiumlysinate glycinate chelate, and 33% magnesium malate) Good
Other Ingredients Excellent

Fillers & Additives

  • Capsule (hypromellose, water)
  • Microcrystalline Cellulose
  • Citric Acid
  • Magnesium Stearate
  • Silica
Efficacy Fair

Dosage Analysis

  • Iron (naturally occurring) 1.9 mg Under-dosed
  • Magnesium(as 34% magnesium bisglycinate chelate, 33% magnesiumlysinate glycinate chelate, and 33% magnesium malate) 225 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Calories 5
Total Carbohydrate <1 g <1%
Iron (naturally occurring) 1.9 mg 11%
Magnesium(as 34% magnesium bisglycinate chelate, 33% magnesiumlysinate glycinate chelate, and 33% magnesium malate) 225 mg 54%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Capsule (hypromellose, water) Unknown
Microcrystalline Cellulose Safe

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

Citric Acid Safe

Adds tartness and acts as a natural preservative. Also aids in ingredient stability.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$21$20$19$18$17 Mar 12 $18.66
iHerb

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

Brand Trust Report
Nordic Naturals

Founded 1995 · Watsonville, California, USA · 186 products · nordicnaturals.com/

Certifications

7 certifications
Consumerlab Verified Source
Labdoor Verified
Nsf Certified For Sport Verified Source
Nsf Gmp Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Vegan Certified Verified Source

Transparency

5 claims
Third Party Testing Claim — Verified Source
Coa Availability — Verified Source
Testing Lab Disclosure — Claimed Source
In House Testing — Verified Source

Violation History

6 incidents
Recall Zero Sugar Kids Multivitamin Supplements2025-05-02Source
Recall Baby's Vitamin D3 Liquid, 0.76 fl. oz.2024-02-27Source
Lawsuit Deceptively labeling fish oil supplements as supporting 'heart health' despite studies suggesting they may not provide benefits and could increase the risk of atrial fibrillation.2024Source
Lawsuit Falsely advertising that its Omega brain, focus, and memory supplements have a meaningful impact on long-term memory and cognition.2023Source
Lawsuit Falsely advertising products as 'natural' when they contain synthetic ingredients.2022Source
Fda Warning Sale of unregistered food supplements in the Philippines.2019-08-01Source
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Frequently Asked Questions
Is Nordic Naturals Magnesium Complex, 90 Capsules a good supplement?

Nordic Naturals Magnesium Complex, 90 Capsules received a product quality score of 81/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 4 active ingredients with 30 servings per container. Of the 5 inactive ingredients, 4 are rated safe and 0 are flagged for review. The manufacturer, Nordic Naturals, holds a brand trust score of 98/100 with 7 verified certifications including Consumerlab, Labdoor, Nsf Certified For Sport, Nsf Gmp.

What are the ingredients in Nordic Naturals Magnesium Complex, 90 Capsules?

Nordic Naturals Magnesium Complex, 90 Capsules contains 4 active ingredients: Calories (5), Total Carbohydrate (<1 g), Iron (naturally occurring) (1.9 mg), Magnesium(as 34% magnesium bisglycinate chelate, 33% magnesiumlysinate glycinate chelate, and 33% magnesium malate) (225 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Nordic Naturals Magnesium Complex, 90 Capsules safe to take?

Nordic Naturals Magnesium Complex, 90 Capsules 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 Nordic Naturals a trustworthy supplement brand?

Nordic Naturals receives a brand trust score of 98/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1995 and headquartered in Watsonville, California, USA, the company offers 186 products in their lineup. They hold 7 verified certifications including Consumerlab, Labdoor, Nsf Certified For Sport, Nsf Gmp. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Nordic Naturals has 6 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 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.