Optimum Calcium Citrate supplement bottle
Optimum

Calcium Citrate

What We Researched
1 active ingredient analyzed · 6 inactive ingredients decoded · 1 retailer compared · Last updated: Mar 2026
73
Product Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Calcium 1 gram 100%
Bioavailability Excellent

Absorption Rating

  • Calcium Good
Other Ingredients Excellent

Fillers & Additives

  • Stearic Acid
  • Croscarmellose Sodium
  • Hypromellose
  • Polyethylene Glycol Low
  • Hydroxypropyl Cellulose
  • Carnauba Wax
Efficacy Very Poor

Dosage Analysis

  • Calcium 1 gram Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calcium 1 gram 100%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Hypromellose Safe

Forms vegetarian capsule shells. Dissolves easily in the stomach.

Polyethylene Glycol Caution

It is used as a binder, coating agent, or to improve solubility.

Hydroxypropyl Cellulose Safe

Binds tablet ingredients and can form tablet coatings.

Carnauba Wax Safe

Provides a glossy, protective coating on tablets.

Price Comparison

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

Brand Trust Report
Optimum

· 5 products

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Frequently Asked Questions
Is Optimum Calcium Citrate a good supplement?

Optimum Calcium Citrate received a product quality score of 73/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 1 active ingredients with 45 servings per container. Of the 6 inactive ingredients, 5 are rated safe and 1 are flagged for review.

What are the ingredients in Optimum Calcium Citrate?

Optimum Calcium Citrate contains 1 active ingredients: Calcium (1 gram). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Optimum Calcium Citrate safe to take?

Optimum Calcium Citrate has been analyzed for ingredient safety across all its components. Of 6 inactive ingredients, 5 are rated safe. 1 ingredient is flagged for review: Polyethylene Glycol. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

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.