New Chapter Magnesium + Selenium & Zinc, 90 Tablets supplement bottle
New Chapter

Magnesium + Selenium & Zinc, 90 Tablets

What We Researched
3 active ingredients analyzed · 8 inactive ingredients decoded · 6 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
83
Product Score Good
83
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Magnesium (175 mg from seawater and 150 mg as TRAACS® magnesium bisglycinate chelate buffered from magnesium bisglycinate chelate and magnesium oxide) 325 mg 77%
Zinc (as zinc oxide from ferment media) 5 mg 45%
Selenium (as selenium yeast from ferment media) 55 mcg 100%
Bioavailability Good

Absorption Rating

  • Magnesium (175 mg from seawater and 150 mg as TRAACS® magnesium bisglycinate chelate buffered from magnesium bisglycinate chelate and magnesium oxide) Good
  • Zinc (as zinc oxide from ferment media) Poor
  • Selenium (as selenium yeast from ferment media) Good
Other Ingredients Excellent

Fillers & Additives

  • Microcrystalline Cellulose
  • Hydroxypropyl Cellulose
  • Less than 2% of: magnesium stearate
  • Silica
  • Croscarmellose Sodium
  • Hydroxypropyl Methylcellulose
  • Stearic Acid
  • Sodium acetate anhydrous
Efficacy Good

Dosage Analysis

  • Magnesium (175 mg from seawater and 150 mg as TRAACS® magnesium bisglycinate chelate buffered from magnesium bisglycinate chelate and magnesium oxide) 325 mg Effective
  • Zinc (as zinc oxide from ferment media) 5 mg Under-dosed
  • Selenium (as selenium yeast from ferment media) 55 mcg Effective

Supplement Facts

Ingredient Amount % Daily Value
Magnesium (175 mg from seawater and 150 mg as TRAACS® magnesium bisglycinate chelate buffered from magnesium bisglycinate chelate and magnesium oxide) 325 mg 77%
Zinc (as zinc oxide from ferment media) 5 mg 45%
Selenium (as selenium yeast from ferment media) 55 mcg 100%

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.

Hydroxypropyl Cellulose Safe

Binds tablet ingredients and can form tablet coatings.

Less than 2% of: magnesium stearate Unknown
Silica Safe

Prevents ingredients from clumping and improves powder flow.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Hydroxypropyl Methylcellulose Safe

It is used as a coating for tablets and capsules.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Sodium acetate anhydrous Unknown

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$53$52$51$50$49 Mar 12 $51.35
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
New Chapter

Founded 1982 · Brattleboro, VT, United States · 123 products · newchapter.com

Certifications

6 certifications
B Corp Certified Verified Source
Nsf Gmp Verified Source
Gluten Free Gfco Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source
Vegan Certified Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Verified Source
In House Testing — Verified Source
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Frequently Asked Questions
Is New Chapter Magnesium + Selenium & Zinc, 90 Tablets a good supplement?

New Chapter Magnesium + Selenium & Zinc, 90 Tablets received a product quality score of 83/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 3 active ingredients with 90 servings per container. Of the 8 inactive ingredients, 6 are rated safe and 0 are flagged for review. The manufacturer, New Chapter, holds a brand trust score of 83/100 with 6 verified certifications including B Corp Certified, Nsf Gmp, Gluten Free Gfco, Non Gmo Project.

What are the ingredients in New Chapter Magnesium + Selenium & Zinc, 90 Tablets?

New Chapter Magnesium + Selenium & Zinc, 90 Tablets contains 3 active ingredients: Magnesium (175 mg from seawater and 150 mg as TRAACS® magnesium bisglycinate chelate buffered from magnesium bisglycinate chelate and magnesium oxide) (325 mg), Zinc (as zinc oxide from ferment media) (5 mg), Selenium (as selenium yeast from ferment media) (55 mcg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is New Chapter Magnesium + Selenium & Zinc, 90 Tablets safe to take?

New Chapter Magnesium + Selenium & Zinc, 90 Tablets 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 New Chapter a trustworthy supplement brand?

New Chapter receives a brand trust score of 83/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1982 and headquartered in Brattleboro, VT, United States, the company offers 123 products in their lineup. They hold 6 verified certifications including B Corp Certified, Nsf Gmp, Gluten Free Gfco, Non Gmo Project. 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.