US
Nature's

Nature's Truth Calcium 1200mg with Vitamin D3 5000 IU

  • Calcium
  • Softgel
  • Calcium
  • 60
4.6/ 5 on Amazon592Amazon ratings1,000+bought last month4.3ProductDome score
High confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYou want calcium and a high dose of vitamin D3 combined into one daily softgel.

A combined calcium and D3 softgel with a notably high D3 dose, reasonable for daily use if soy isn't a concern.

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ProductDome scorecard

How it ranks among the 107 calcium we track

4.3/ 5ProductDome scoreHigh confidence
Owner satisfaction · 56% of scorecategory median 4.6★4.6

4.6★ across 592 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 1,800 ratings3.5

592 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score4.1

1,000+ bought on Amazon last month.

Data quality · 11% of score3.8

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 Truth model NT1660 pairs 1200mg of calcium carbonate with 5000 IU of vitamin D3 in a single softgel, sold as a 60-count bottle for daily use.

Combining calcium and D3 in one softgel follows the common logic that vitamin D supports calcium absorption, so putting both nutrients in a single dose simplifies the daily routine versus two separate pills. The listing flags soy among its allergens even though the product is also labeled gluten free, which is worth checking if soy is a concern for you.

  • 1200mg calcium carbonate
  • 5000 IU vitamin D3
  • 60 softgels per bottle
  • Non-GMO and gluten-free label

Who it's for

Adults wanting a combined calcium and D3 softgel instead of taking two separate supplements. Not suitable for anyone avoiding soy, since it appears on this product's allergen list.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • Combines calcium and D3 in one softgel
  • Non-GMO and gluten-free
  • 5000 IU D3 dose higher than many combination products
What to check first
  • Contains soy per the allergen list
  • Calcium carbonate generally needs to be taken with food
  • 60-count bottle is only a two-month supply at one a day

Performance notes

Calcium carbonate, the form used here, is generally taken alongside food since stomach acid aids its dissolution and absorption. The 5000 IU of vitamin D3 included in the same softgel is well above the amount found in many basic combination products, which is the main way this listing stands apart from a plain calcium supplement.

Specifications

BrandNature's
ModelNT1660
FormSoftgel
Supplement TypeCalcium
Count60
BenefitsNutritional Support
FlavorUnflavored
AllergensSoy

How it compares

This product against the closest alternatives we track in calcium.

ProductAmazon ratingRatingsProductDome score
Nature's Truth Calcium 1200mg with Vitamin D3 5000 IUThis product4.6 / 55924.3 / 5
Nature Made Calcium Magnesium Zinc with Vitamin D3NATURE4.8 / 519,9004.7 / 5
Caltrate 600 Plus D3 Calcium and Vitamin D Supplement TabletsCaltrate4.7 / 516,4004.6 / 5
Citracal Slow Release- Calcium 1200 mg with Vitamin D3Citracal4.7 / 511,9094.6 / 5
NATURELO Calcium SupplementNATURELO4.6 / 511,0004.6 / 5
Frequently asked

Questions about the Nature's NT1660

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

How much vitamin D3 is in Nature's Truth NT1660?

5000 IU per softgel.

Does Nature's Truth Calcium with D3 contain soy?

Yes, soy is listed among its allergens.

How many softgels come in a bottle of NT1660?

60 softgels.