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600 Calcium Supplement

21st Century
4.7
(4528 ratings)
Calcium 600 mg
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Score96

An ultra-affordable, large-count bottle of calcium carbonate for long-term daily bone support.

How scoring works
Quantity:400 Tablet(s)(400 servings)
Goals:
Bone Health

Score 96

An ultra-affordable, large-count bottle of calcium carbonate for long-term daily bone support.

How scoring works
$11.99($0.02 per serving)
iHerb
$ 11.99
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Analysis

If you are looking for a simple, long-term supply of minerals, this product is an excellent choice. Each tablet provides 600mg of calcium, which is an ideal amount to take as a single serving to help maintain healthy bone density. It is a no-frills option that does exactly what it says without any extra fluff.

The value here is incredible, as one bottle can last for over a year of daily use. Since it only contains calcium, it is easy to pair with your other vitamins. It is a very practical choice for anyone on a budget who wants to ensure they are getting enough calcium every day.

Pros

  • Exceptional price per tablet
  • Huge 400-count supply
  • Perfect 600mg dose
  • Simple and clear formula
  • Consistent quality

Cons

  • No Vitamin D included
  • Carbonate form needs food
  • Tablets are somewhat large

Warnings

  • Take with food for best absorption
  • Ensure you get enough Vitamin D separately
  • Drink plenty of water when taking

Nutrient quality

89 Highest impact

Substantial mineral dose provides effective structural support for bone health. While carbonate has moderate bioavailability, the elemental yield is high for single-tablet intake.

Ingredient transparency

99 Highest impact

Labeling clearly states the active ingredient and its milligram yield per serving. Consumer transparency is supported by clear disclosure of all non-active components.

Customer satisfaction

96 Highest impact

High ratings across thousands of reviews indicate reliable user satisfaction and product efficacy. Feedback confirms the tablets are a trusted choice for basic mineral supplementation.

Value for money

100 Highest impact

Exceptional cost per serving makes this one of the most affordable options on the market. High volume per container provides excellent long-term value for consistent users.

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Goals

Impact
High effect
A Goal FitB+ Strength of SupportD- CoverageB+ Formula Quality

This supplement provides 600 mg of calcium carbonate, the primary mineral needed to build and maintain the hard skeletal matrix. Calcium intake is fundamentally linked to the prevention of bone loss and the maintenance of bone mineral density over time.

As a single-ingredient formula, it lacks the Vitamin D and magnesium required for efficient absorption and metabolic handling of calcium. The carbonate form is less bioavailable than chelated versions and is most effective when taken with food.

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Ingredients

IngredientAmount per serving
Calcium (Calcium Carbonate)
600 mg
Gluten Free Adults 18–50
Report overview
C+ Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyA+ Value
A high-potency calcium carbonate supplement offering a standard 600mg dose at an incredibly low price. While it lacks premium absorption forms, it is a straightforward and transparent option for budget-conscious users.
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