Nature's Way Alive! Calcium Bone Support Tablets*
- Calcium
- Tablet
- Calcium
- 120
Useful if you want calcium bundled with D3, K2 and magnesium in one tablet, though the soy content is worth checking against your own allergies first.
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How it ranks among the 107 calcium we track
4.6★ across 1,500 Amazon ratings, Bayesian-smoothed toward the category average.
1,500 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
Nature's Way Alive! Calcium Bone Support combines calcium with vitamin D3, K2 and magnesium in a 120 tablet vegetarian formula aimed at supporting bone density and bone health.
Rather than a plain calcium tablet, this pairs calcium with D3, K2 and magnesium, nutrients the label ties together as working alongside calcium for bone support. It's gluten free and vegetarian, though soy is listed among the allergens.
- 120 tablets per bottle
- Calcium plus D3, K2 and magnesium
- Gluten free and vegetarian formula
- Soy listed among allergens
Who it's for
Works for adults who want calcium bundled with D3, K2 and magnesium instead of buying each separately, and for vegetarians avoiding animal derived calcium sources. Not suited to anyone with a soy allergy given the listed allergen.
Strengths and trade-offs
Drawn from this product's published specifications.
- Combines calcium with D3, K2 and magnesium
- Vegetarian and gluten free formula
- 120 tablet supply in one bottle
- Contains soy as a listed allergen
- No customer reviews on file
Performance notes
Pairing calcium with vitamin D3 supports absorption, while K2 is included because it's believed to help direct calcium toward bone rather than soft tissue, which is the reasoning behind combination bone formulas like this one.
Specifications
| Brand | Nature’s |
|---|---|
| Model | 15839 |
| Form | Tablet |
| Supplement Type | Calcium |
| Count | 120 |
| Benefits | Bone Strength |
| Flavor | Unflavored |
| Diet | Vegetarian |
| Allergens | Soy |
Other Nature’s calcium
How it compares
This product against the closest alternatives we track in calcium.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Nature's Way Alive! Calcium Bone Support Tablets*This product | 4.6 / 5 | 1,500 | 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 Nature’s 15839
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What does Nature's Way Alive! Calcium Bone Support (model 15839) contain besides calcium?
Vitamin D3, K2 and magnesium alongside the calcium.
Is this calcium supplement vegetarian?
Yes, it's listed as a vegetarian formula.
Does it contain any allergens?
Soy is listed as an allergen.