US
Nature's

Nature's Bounty Calcium Magnesium & Zinc Caplets

  • Calcium
  • Tablet
  • Calcium Magnesium Zinc
  • 100
4.7/ 5 on Amazon23,000Amazon ratings10,000+bought last month4.7ProductDome score
  • Better rated than 63%
  • More reviewed than 97%
High confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forPeople who want calcium, magnesium, zinc and vitamin d combined into a single caplet

A combined calcium, magnesium, zinc and vitamin D caplet in a 100-count bottle, useful if you want bone and immune support minerals from one product instead of several.

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ProductDome scorecard

How it ranks among the 107 calcium we track

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

4.7★ across 23,000 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 1,800 ratings5.0

23,000 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score5.0

10,000+ 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

Nature's Bounty combines calcium, magnesium and zinc with vitamin D into one caplet, sold in a 100-count bottle. The label markets it toward bone and immune health, and the formula is gluten free.

Rather than stacking separate calcium and magnesium bottles, this caplet bundles three minerals plus vitamin D3 into one product. It suits people managing a bone-health routine who want fewer pills to track, though the label doesn't specify servings per day.

  • 1000mg calcium, 400mg magnesium, 600 IU vitamin D3 per label
  • Caplet form, 100-count bottle
  • Gluten free
  • Targets bone health and immune support

Who it's for

Adults building a bone and immune support routine who would rather take one combined caplet than juggle separate calcium, magnesium and zinc bottles. Not a fit for anyone already covering these minerals through another supplement.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Combines calcium, magnesium and zinc in one caplet
  • Includes 600 IU vitamin D3 per label
  • Gluten free formula
  • Marketed for both bone and immune support
What to check first
  • Per-caplet serving breakdown isn't specified in the listing
  • 100-count size is on the smaller side for daily long-term use

Performance notes

The caplet delivers 1000mg calcium, 400mg magnesium and 600 IU vitamin D3 per the label, targeted at bone health and immune support. It's gluten free, though the data here doesn't break down the per-caplet serving size.

Specifications

BrandNature's
Model4290
FormTablet
Supplement TypeCalcium Magnesium Zinc
Count100
BenefitsBone Health,Immune Support
FlavorCalcium Magnesium Zinc
DietGluten Free
AllergensGluten Free

How it compares

This product against the closest alternatives we track in calcium.

ProductAmazon ratingRatingsProductDome score
Nature's Bounty Calcium Magnesium & Zinc CapletsThis product4.7 / 523,0004.7 / 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 4290

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

Is Nature's Bounty Calcium Magnesium & Zinc gluten free?

Yes, the formula is labeled gluten free.

What form do the caplets come in?

They're caplets, sold in a 100-count bottle.

What does this supplement target?

The label lists bone health and immune support as its main benefits.