Nature's Bounty Calcium 1200 mg with 1000 IU Vitamin D3
- Calcium
- Softgel
- Calcium
- 120
- More reviewed than 99%
A 1200 mg calcium and 1000 IU D3 softgel dosed twice daily, sized for a two-month supply per bottle.
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How it ranks among the 107 calcium we track
4.6★ across 43,000 Amazon ratings, Bayesian-smoothed toward the category average.
43,000 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
20,000+ 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 Bounty's 83437 softgel pairs 1200 mg of calcium with 1000 IU of vitamin D3, dosed at two softgels a day, in a 120-count bottle that works out to a 60-day supply.
Calcium and D3 are commonly paired because D3 supports calcium absorption, and that's the combination here rather than calcium sold alone. The two-a-day dosing means the 120-count bottle covers two months rather than four. It's gluten free, though the allergen line lists soy.
- 1200 mg calcium plus 1000 IU vitamin D3
- Two softgels a day
- 120-count bottle, 60-day supply
- Gluten free, contains soy
Who it's for
Suits adults who want calcium and D3 combined for bone and joint support and are comfortable with a two-softgel daily dose. Less suited to anyone with a soy allergy or who wants calcium without added D3.
Strengths and trade-offs
Drawn from this product's published specifications.
- 1200 mg calcium plus 1000 IU D3
- Clear two-a-day dosing
- Soy listed as allergen
- Only a 60-day supply despite 120 count
Performance notes
The 120 softgels are meant to be taken two at a time, so the bottle lasts 60 days rather than the full 120 the count alone might suggest. Pairing calcium with D3 in the same softgel means one dose covers both nutrients together.
Specifications
| Brand | Nature's |
|---|---|
| Model | 83437 |
| Form | Softgel |
| Supplement Type | Calcium |
| Count | 120 |
| Benefits | Bone & Joint Support |
| Flavor | Unflavored |
| Diet | Gluten Free |
| 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 Bounty Calcium 1200 mg with 1000 IU Vitamin D3This product | 4.6 / 5 | 43,000 | 4.6 / 5 |
| Nature Made Calcium Magnesium Zinc with Vitamin D3NATURE | 4.8 / 5 | 19,900 | 4.7 / 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 |
| NATURELO Calcium SupplementNATURELO | 4.6 / 5 | 11,000 | 4.6 / 5 |
Similar calcium from other brands
Questions about the Nature's 83437
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How much calcium is in Nature's Bounty's 83437 softgel?
1200 mg calcium with 1000 IU vitamin D3 per two-softgel dose.
How long does the 120-count bottle last?
About 60 days at the recommended two softgels a day.
Does it contain soy?
Soy is listed on the allergen line.