Magnesium & Calcium Review

NOW Magnesium & Calcium 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 33 servings per container. Of the 10 inactive ingredients, 7 are rated safe and 0 are flagged for review. The manufacturer, NOW, holds a brand trust score of 100/100 with 9 verified certifications including Informed Sport, Npa Gmp, Consumerlab, Labdoor.

NOW Magnesium & Calcium contains 4 active ingredients: Vitamin D3 (as Cholecalciferol) (1000 IU) (25 mcg), Calcium (from Aquamin® TG, Seaweed Derived Minerals and Calcium Citrate) (400 mg), Magnesium (from Magnesium Oxide, Magnesium Glycinate, Magnesium Taurinate. Magnesium Citrate, and Aquamin® TG, Seaweed Derived Minerals) (800 mg), Zinc (from L-OptiZinc Monomethionine) (15 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

NOW Magnesium & Calcium 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.

NOW receives a brand trust score of 100/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1968 and headquartered in Bloomingdale, Illinois, USA, the company offers 1759 products in their lineup. They hold 9 verified certifications including Informed Sport, Npa Gmp, Consumerlab, Labdoor. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: NOW has 8 historical regulatory incidents on record, which are factored into the trust score.

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.

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.

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.