Nature's Bounty Calcium Plus 400 IU Vitamin D3, Immune Support & Bone Health, 300 Tablets Review
Our verdict
A large 300-tablet calcium and D3 combination with a mid-range 400 IU vitamin D dose, a practical everyday option for those who want a big bottle at a moderate price.
Check price on AmazonBest for
People who want a large calcium and vitamin D3 tablet supply without paying a premium price.
Skip if
You want a higher-dose vitamin D3 tablet, since this formula uses 400 IU rather than some higher-strength versions on the market.
- Form Tablet
- Count 300 Count
- Flavor Unflavored
- Type Calcium
- Diet Gluten Free
- Benefits Bone & Joint Support, Immune Support, Nutritional Support
- Priced 13% below the category median ($19.99 across 107 tracked models)
Pros
- Large 300-count bottle for extended daily use
- Combines calcium with 400 IU vitamin D3
- Gluten-free formula
- Labeled for bone, joint, and immune support
Cons
- 400 IU vitamin D3 dose is more modest than some higher-strength calcium and D3 tablets
- Contains a molluscs allergen note, which may matter to those with shellfish-related sensitivities
- Unflavored tablet only, no chewable or gummy option in this listing
Our scorecard
-
Owner rating4.7/5
4.7 average across 7,100 owner ratings
-
Popularity4.2/5
7,100 owner reviews, more than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other home health monitors: bathroom scales, blood pressure monitors, pregnancy and ovulation tests, thermometers, body composition monitors, stethoscopes, glucose monitors and pulse oximeters we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
This tablet combines calcium with 400 IU of vitamin D3 in a 300-count bottle, giving a large supply in an unflavored, gluten-free format. It's positioned as an everyday option rather than a specialty formula, with a straightforward calcium-plus-D3 approach.
The label markets it for bone and joint support, immune support, and general nutritional support, and it carries a molluscs allergen note worth checking if that applies to you.
Specifications
| Form | Tablet |
|---|---|
| Count | 300 Count |
| Flavor | Unflavored |
| Type | Calcium |
| Diet | Gluten Free |
| Benefits | Bone & Joint Support, Immune Support, Nutritional Support |
| Allergens | Molluscs |
Performance notes
The tablet combines calcium with 400 IU vitamin D3 in a 300-count, gluten-free, unflavored formula. The label carries a molluscs allergen note and markets the product for bone and joint support, immune support, and general nutritional support.
What buyers say
A 4.7-star average across roughly 7,100 reviews indicates solid, consistent customer satisfaction for this everyday calcium and D3 tablet.
More from Nature’s
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Frequently asked questions
Does this contain shellfish or molluscs?
The label carries a molluscs allergen note. If you have a shellfish-related sensitivity, check the current packaging closely or consider another option in this lineup.
How much vitamin D3 is in each serving?
The label lists 400 IU of vitamin D3 alongside the calcium dose. Check the current packaging for exact per-tablet amounts.
Is this gluten-free?
Yes, the product is labeled gluten-free.