US
Nature's

Nature's Wonder Calcium 600 mg with Vitamin D3 20 mcg for Bone Health

  • Calcium
  • Tablet
  • Calcium
  • 220
4.7/ 5 on Amazon618Amazon ratings2,000+bought last month4.4ProductDome score
  • Better rated than 63%
High confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYou want a straightforward calcium and D3 tablet with a long supply and no flavoring.

A no-frills 600 mg calcium plus D3 tablet with a large 220-count supply, aimed at anyone building a basic bone-support routine.

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ProductDome scorecard

How it ranks among the 107 calcium we track

4.4/ 5ProductDome scoreHigh confidence
Owner satisfaction · 56% of scorecategory median 4.6★4.7

4.7★ across 618 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 1,800 ratings3.5

618 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score4.5

2,000+ bought on Amazon last month.

Data quality · 11% of score3.8

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 107 calcium we track - how the scorecard works · full calcium data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

This is a 220-tablet bottle of calcium combined with 600 mg calcium and 20 mcg (800 IU) vitamin D3 per serving, positioned for daily bone support. It suits adults looking to close a calcium gap in their diet with a straightforward, unflavored tablet.

Calcium and D3 are commonly paired because vitamin D helps the body absorb calcium, so this formula bundles both into one tablet rather than requiring two separate supplements. It carries no flavoring and is formulated without gluten or lactose, which matters for anyone managing a dairy or gluten sensitivity alongside a bone health routine.

  • 600 mg calcium per serving
  • 20 mcg (800 IU) vitamin D3
  • 220 tablets per bottle
  • Gluten free and lactose free

Who it's for

Suited to adults who want a basic calcium and D3 tablet without added sugars or animal-derived lactose. Not for anyone who needs a liquid or chewable format, or a formula that also includes magnesium or vitamin K2.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Long 220-tablet supply
  • Combines calcium and D3 in one tablet
  • Free of gluten and lactose
  • Unflavored, no added sugar
What to check first
  • No magnesium or K2 included
  • Tablet form only, no chewable or liquid option

Performance notes

Vitamin D3 improves how much calcium the body actually absorbs from the digestive tract, which is why the two are commonly paired in a single tablet. At 600 mg calcium and 20 mcg D3 per serving, this sits within a normal daily supplemental range rather than a mega-dose formula.

Specifications

BrandNature's
FormTablet
Supplement TypeCalcium
Count220
BenefitsBone & Joint Support, Immune Support
FlavorUnflavored
AllergensGluten Free, Lactose Free

How it compares

This product against the closest alternatives we track in calcium.

ProductAmazon ratingRatingsProductDome score
Nature's Wonder Calcium 600 mg with Vitamin D3 20 mcg for Bone HealthThis product4.7 / 56184.4 / 5
Nature Made Calcium Magnesium Zinc with Vitamin D3NATURE4.8 / 519,9004.7 / 5
Caltrate 600 Plus D3 Calcium and Vitamin D Supplement TabletsCaltrate4.7 / 516,4004.6 / 5
Citracal Slow Release- Calcium 1200 mg with Vitamin D3Citracal4.7 / 511,9094.6 / 5
NATURELO Calcium SupplementNATURELO4.6 / 511,0004.6 / 5
Frequently asked

Questions about the Nature's calcium

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

Does Nature's Wonder Calcium 600 mg include vitamin D3?

Yes, each serving pairs 600 mg of calcium with 20 mcg of vitamin D3.

Is this calcium supplement gluten free?

Yes, the listing states it is both gluten free and lactose free.

How many tablets are in one bottle?

The bottle contains 220 tablets.