Nature's Bounty Calcium Plus Vitamin D3 Tablets 300 Count
- Form: Tablet
- Supplement Type: Calcium
- Diet: Gluten Free
- Allergens: Molluscs
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
This bulk-format calcium and D3 tablet from an established brand suits daily long-term use rather than short-term supplementation.
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ASIN: B002FHL3DECategory: Calcium Supplements
Overview
Nature's Bounty pairs calcium with 400 IU of vitamin D3 in a 300-tablet bottle built for bone, joint and immune support.
Pairing calcium with vitamin D3 is standard because D3 supports calcium absorption; this is a large 300-tablet bottle aimed at ongoing daily use rather than a short course. The allergen note lists molluscs, which is typical for calcium sourced from shell-derived material.
- Calcium plus 400 IU vitamin D3
- 300 tablets per bottle
- Bone and joint support
- Gluten free
Who it's for
People wanting an everyday calcium and D3 tablet in a bulk bottle, particularly those tracking bone health. Not suitable for anyone with a shellfish or mollusc allergy given the listed allergen.
Pros and cons
- 300 tablets is a long-lasting bulk supply
- Combines calcium with 400 IU D3
- Contains molluscs, unsuitable for shellfish allergies
- Tablet-only, no chewable or gummy option
Performance notes
Vitamin D3 is included alongside calcium because D3 governs how well the body absorbs and uses calcium, which is the standard rationale for combining the two in one tablet.
Specifications
| Brand | Nature's Bounty |
|---|---|
| Form | Tablet |
| Supplement Type | Calcium |
| Diet | Gluten Free |
| Allergens | Molluscs |
| Count | 300 |
| Flavor | Unflavored |
| Benefits | Bone & Joint Support, Immune Support, Nutritional Support |
Frequently asked questions
Does it contain shellfish-derived ingredients?
The listing notes molluscs as an allergen.
How much vitamin D3 is included?
400 IU per the listed formulation.
How many tablets are in the bottle?
300.