Calcium Citrate, 100 Tablets
Product Analysis
Transparency Excellent
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Vitamin D2(as Ergocalciferol - a vegetarian source) (400 IU) | 10 mcg | 50% |
| Calcium (from Calcium Citrate) | 600 mg | 46% |
| Magnesium(from Magnesium Oxide and Magnesium Aspartate) | 300 mg | 71% |
| Zinc (from Zinc AAC*) | 15 mg | 136% |
| Copper (from Copper AAC*) | 1 mg | 111% |
| Manganese (from Manganese AAC*) | 5 mg | 217% |
Bioavailability Very Good
Absorption Rating
- Vitamin D2(as Ergocalciferol - a vegetarian source) (400 IU) Fair
- Calcium (from Calcium Citrate) Good
- Magnesium(from Magnesium Oxide and Magnesium Aspartate) Good
- Zinc (from Zinc AAC*) Fair
- Copper (from Copper AAC*) Fair
- Manganese (from Manganese AAC*) Good
Other Ingredients Excellent
Fillers & Additives
- Hydroxypropyl Cellulose
- Vegetarian Coating
- Croscarmellose Sodium
- Silicon Dioxide
- Magnesium stearate (vegetable source) and stearic acid (vegetable source)
Efficacy Very Good
Dosage Analysis
- Vitamin D2(as Ergocalciferol - a vegetarian source) (400 IU) 10 mcg Under-dosed
- Calcium (from Calcium Citrate) 600 mg Effective
- Magnesium(from Magnesium Oxide and Magnesium Aspartate) 300 mg Effective
- Zinc (from Zinc AAC*) 15 mg Effective
- Copper (from Copper AAC*) 1 mg Effective
- Manganese (from Manganese AAC*) 5 mg Effective
Supplement Facts
| Ingredient | Amount | % Daily Value |
|---|---|---|
| Vitamin D2(as Ergocalciferol - a vegetarian source) (400 IU) | 10 mcg | 50% |
| Calcium (from Calcium Citrate) | 600 mg | 46% |
| Magnesium(from Magnesium Oxide and Magnesium Aspartate) | 300 mg | 71% |
| Zinc (from Zinc AAC*) | 15 mg | 136% |
| Copper (from Copper AAC*) | 1 mg | 111% |
| Manganese (from Manganese AAC*) | 5 mg | 217% |
Other Ingredients
Vegetarian Coating Generally_safe
Silicon Dioxide Safe
Price Comparison
Price History
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Certifications
7 certifications
Transparency
5 claims
Violation History
7 incidents
Is NOW Foods Calcium Citrate, 100 Tablets a good supplement?
NOW Foods Calcium Citrate, 100 Tablets received a product quality score of 89/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 6 active ingredients with 50 servings per container. Of the 5 inactive ingredients, 3 are rated safe and 0 are flagged for review. The manufacturer, NOW Foods, holds a brand trust score of 100/100 with 7 verified certifications including Consumerlab, Informed Sport, Labdoor, Non Gmo Project.
What are the ingredients in NOW Foods Calcium Citrate, 100 Tablets?
NOW Foods Calcium Citrate, 100 Tablets contains 6 active ingredients: Vitamin D2(as Ergocalciferol - a vegetarian source) (400 IU) (10 mcg), Calcium (from Calcium Citrate) (600 mg), Magnesium(from Magnesium Oxide and Magnesium Aspartate) (300 mg), Zinc (from Zinc AAC*) (15 mg), Copper (from Copper AAC*) (1 mg), Manganese (from Manganese AAC*) (5 mg). Notable high-dose ingredients include Manganese at 217% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.
Is NOW Foods Calcium Citrate, 100 Tablets safe to take?
NOW Foods Calcium Citrate, 100 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 NOW Foods a trustworthy supplement brand?
NOW Foods 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 996 products in their lineup. They hold 7 verified certifications including Consumerlab, Informed Sport, Labdoor, Non Gmo Project. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: NOW Foods has 7 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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