New Chapter Calcium Supplement
- Calcium
- Tablet
- Calcium
- 240
- More reviewed than 56%
A plant-based calcium tablet that bundles in magnesium, D3 and K2, worth considering if you want organic sourcing and don't have a soy allergy.
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How it ranks among the 107 calcium we track
4.6★ across 2,100 Amazon ratings, Bayesian-smoothed toward the category average.
2,100 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
1,000+ bought on Amazon last month.
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
New Chapter's Bone Strength Tiny Tabs combine plant-based, USDA organic calcium with magnesium, vitamin D3 and K2 in a 905 mg dose, packaged 240 tablets to a bottle.
Sourcing calcium from a plant source rather than rock-based calcium carbonate is the differentiator here, paired with K2, which is included specifically to help direct calcium toward bone rather than soft tissue. It's vegan, though it does carry a soy allergen.
- 905 mg dose combining calcium, magnesium, D3 and K2
- 240 tiny tabs per bottle
- USDA organic, plant-based, vegan
- Contains soy
Who it's for
Adults seeking a plant-based, organic calcium supplement with the D3 and K2 cofactors already built in. Not ideal for anyone with a soy allergy, since the product lists soy among its allergens.
Strengths and trade-offs
Drawn from this product's published specifications.
- Plant-based, USDA organic calcium source
- Bundles magnesium, D3 and K2 in one tablet
- Large 240-tablet count
- Contains soy, an issue for allergy sufferers
- Multiple tablets likely needed to reach the full 905 mg dose
Performance notes
Including vitamin K2 alongside calcium and D3 reflects current thinking on bone supplementation, where K2 supports getting calcium into bone tissue rather than leaving it to accumulate elsewhere in the body.
Specifications
| Brand | New Chapter |
|---|---|
| Model | 0413 |
| Form | Tablet |
| Supplement Type | Calcium |
| Count | 240 |
| Benefits | Bone & Joint Support |
| Flavor | Unflavored |
| Diet | Vegan |
| Allergens | Soy |
Other New Chapter calcium
How it compares
This product against the closest alternatives we track in calcium.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| New Chapter Calcium SupplementThis product | 4.6 / 5 | 2,100 | 4.4 / 5 |
| Nature Made Calcium Magnesium Zinc with Vitamin D3NATURE | 4.8 / 5 | 19,900 | 4.7 / 5 |
| Nature's Bounty Calcium Magnesium & Zinc CapletsNature's | 4.7 / 5 | 23,000 | 4.6 / 5 |
| Caltrate 600 Plus D3 Calcium and Vitamin D Supplement TabletsCaltrate | 4.7 / 5 | 16,400 | 4.6 / 5 |
| Citracal Slow Release- Calcium 1200 mg with Vitamin D3Citracal | 4.7 / 5 | 11,909 | 4.6 / 5 |
Similar calcium from other brands
Questions about the New Chapter 0413
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Is New Chapter's calcium plant-based?
Yes, it uses USDA organic, plant-based calcium.
What else is included besides calcium?
Magnesium, vitamin D3 and vitamin K2 in a 905 mg dose.
Does this product contain allergens?
It lists soy as an allergen; it is vegan but not soy free.