Nature's Life Marine Magnesium, 100 Vegetarian Capsules (250 mg per Capsule) supplement bottle
Nature's Life

Marine Magnesium, 100 Vegetarian Capsules (250 mg per Capsule)

What We Researched
1 active ingredient analyzed · 3 inactive ingredients decoded · 1 brand certification checked · 2 retailers compared · Last updated: Mar 2026
68
Product Score Fair
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Magnesium (as Magnesium Hydroxide) (Marine Source) 500 mg 119%
Bioavailability Very Poor

Absorption Rating

  • Magnesium (as Magnesium Hydroxide) (Marine Source) Poor
Other Ingredients Excellent

Fillers & Additives

  • Cellulose
  • Vegetarian Cellulose Capsule
  • Magnesium Stearate and Silica
Efficacy Very Good

Dosage Analysis

  • Magnesium (as Magnesium Hydroxide) (Marine Source) 500 mg High

Supplement Facts

Ingredient Amount % Daily Value
Magnesium (as Magnesium Hydroxide) (Marine Source) 500 mg 119%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Cellulose Safe

Provides bulk and structure in tablets and capsules.

Vegetarian Cellulose Capsule Safe

It provides a vegetarian-friendly way to deliver the supplement.

Magnesium Stearate and Silica Generally_safe

It is used to improve powder flow and prevent sticking during manufacturing.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$14$13$12$11$10 Mar 12 $12.39$12.39
iHerb
Vitacost

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

Brand Trust Report
Nature's Life

Founded 1975 · Ogden, Utah, USA · 129 products · natureslife.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 Nature's Life Marine Magnesium, 100 Vegetarian Capsules (250 mg per Capsule) a good supplement?

Nature's Life Marine Magnesium, 100 Vegetarian Capsules (250 mg per Capsule) received a product quality score of 68/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 1 active ingredients with 50 servings per container. Of the 3 inactive ingredients, 2 are rated safe and 0 are flagged for review. The manufacturer, Nature's Life, holds a brand trust score of 66/100 with 1 verified certifications including Fda Gmp Inspections.

What are the ingredients in Nature's Life Marine Magnesium, 100 Vegetarian Capsules (250 mg per Capsule)?

Nature's Life Marine Magnesium, 100 Vegetarian Capsules (250 mg per Capsule) contains 1 active ingredients: Magnesium (as Magnesium Hydroxide) (Marine Source) (500 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Nature's Life Marine Magnesium, 100 Vegetarian Capsules (250 mg per Capsule) safe to take?

Nature's Life Marine Magnesium, 100 Vegetarian Capsules (250 mg per Capsule) 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 Nature's Life a trustworthy supplement brand?

Nature's Life receives a brand trust score of 66/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1975 and headquartered in Ogden, Utah, USA, the company offers 129 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.