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Nature's Bounty

Nature's Bounty Calcium Carbonate and Vitamin D 250 Tablets

  • Form: Tablet
  • Supplement Type: Calcium
  • Diet: Gluten Free
  • Allergens: Sulphur Dioxide

Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A large-format calcium and vitamin D3 tablet for anyone maintaining a daily bone-health routine and wanting to avoid reordering often.

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ASIN: B0012D38G2Category: Calcium Supplements

Overview

This Nature's Bounty formula combines 600 mg of calcium carbonate with 800 IU of vitamin D3 in a single tablet, pairing the two nutrients that work together for bone health rather than requiring two separate pills.

The 250-tablet count is a large bottle, suited to a long daily routine rather than a trial size. It carries a gluten-free listing, and the calcium and vitamin D3 combination reflects the established relationship between the two nutrients rather than added extras.

  • 600 mg calcium carbonate per serving
  • 800 IU vitamin D3 for absorption support
  • 250 tablets per bottle
  • Gluten free

Who it's for

Anyone building a daily calcium and vitamin D routine for bone health who wants both nutrients in one tablet and prefers a large bottle to avoid reordering often. Less suited to someone advised to use calcium citrate instead of carbonate.

Pros and cons

Pros
  • 600 mg calcium plus 800 IU vitamin D3 in one tablet
  • Large 250-tablet count reduces reordering
Cons
  • Calcium carbonate is best absorbed with food, unlike calcium citrate
  • Tablet form may be harder to swallow than a softgel for some users

Performance notes

Vitamin D3 supports the body's absorption of calcium, which is why the two are commonly combined in one tablet rather than sold separately. Calcium carbonate, the form used here, is generally best absorbed when taken with food.

Specifications

BrandNature's Bounty
FormTablet
Supplement TypeCalcium
DietGluten Free
AllergensSulphur Dioxide
Count250
FlavorUnflavored
BenefitsBone & Joint Support, Immune Support

Frequently asked questions

How much calcium and vitamin D does each serving provide?

The formula provides 600 mg of calcium carbonate and 800 IU of vitamin D3.

How many tablets come in the bottle?

The bottle contains 250 tablets.

Is this formula gluten free?

Yes, it is listed as gluten free.