21st Century Calcium Citrate + D3 Petites Tablets
- Form: Tablet
- Supplement Type: Calcium
- Diet: Gluten Free
- Allergens: Gluten Free
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A large-count, smaller-pill calcium citrate and D3 tablet from a long-running mainstream brand, a practical basic choice for bone strength support.
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ASIN: B00O1ZV4M8Category: Calcium Supplements
Overview
21st Century's Calcium Citrate + D3 Petites pack calcium citrate with vitamin D3 into small, coated tablets, sold in a 200 count bottle aimed at bone strength support.
The Petites naming points to a smaller tablet size than standard calcium tablets, a detail that matters since calcium supplements are often criticized for being large and hard to swallow. Calcium citrate, rather than calcium carbonate, is generally easier to absorb without food, which the D3 pairing supports for bone health.
- Calcium citrate plus vitamin D3
- 200 coated tablets per bottle
- Smaller Petites tablet size
- Gluten free, unflavored
Who it's for
Fits adults who want a straightforward calcium and D3 tablet in a smaller pill size and a large 200 count bottle. Less suited to anyone wanting a flavored chewable or a combined multi-ingredient bone formula.
Pros and cons
- 200 tablets per bottle, a long-lasting supply
- Smaller coated tablet size
- Calcium citrate pairs with D3 for absorption
- 4.4 rating is on the lower end for this batch
- No seller description detailing exact serving size
Performance notes
The 200 tablet count gives a long runway even at a multi-tablet daily serving, common for calcium products since the mineral is bulky and often split across several tablets. The formula is gluten free and unflavored, coated for easier swallowing per the Petites name.
Specifications
| Brand | 21st Century |
|---|---|
| Form | Tablet |
| Supplement Type | Calcium |
| Diet | Gluten Free |
| Allergens | Gluten Free |
| Count | 200 |
| Flavor | Unflavored |
| Benefits | Bone Strength |
Frequently asked questions
What form of calcium does this use?
It uses calcium citrate, paired with vitamin D3.
Why are these called Petites?
The tablets are sized smaller than standard calcium tablets for easier swallowing.
How many tablets come in a bottle?
The bottle contains 200 coated tablets.