21st Century Calcium Plus D3 Tablets, (90 Count), 1000mg Calcium with Vitamin D3 20mcg (800 IU), Gluten-Free & Non-GMO, Bone Health Supplement for Men & Women, No Added Yeast or Artificial Flavors Review

4.6 (1,000) Amazon rating$4.501,000+ bought last month

Our verdict

This is a 1000 mg calcium and vitamin D3 tablet from 21st Century, sold in a 90 count bottle at the lowest price point in this list. It works well for someone who wants a straightforward calcium and vitamin D3 combination without paying for a larger bottle.

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Best for

Budget-conscious shoppers who want a basic calcium and vitamin D3 tablet in a smaller 90 count bottle, with gluten-free and non-GMO labeling.

Skip if

Skip this one if you want a larger bottle to cut down on reordering, or if you are looking for a product with added magnesium or zinc.

  • Form Tablet
  • Count 90 Count
  • Flavor Unflavored
  • Type Calcium, Vitamin D3
  • Diet Gluten Free
  • Benefits Bone Strength
  • Priced 77% below the category median ($19.99 across 107 tracked models)

Pros

  • Lowest price point among the calcium products in this list
  • Combines calcium with vitamin D3 in one tablet
  • Gluten-free and non-GMO labeling
  • No added yeast or artificial flavors on the label

Cons

  • Smaller 90 count bottle than some of the 120 to 300 count options in this category
  • Smaller review base than the largest calcium brands in this list

Our scorecard

4.6/5 overall
  • Owner rating4.6/5

    4.6 average across 1,000 owner ratings

  • Popularity2.0/5

    1,000 owner reviews, fewer than most models here

The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other home health monitors: bathroom scales, blood pressure monitors, pregnancy and ovulation tests, thermometers, body composition monitors, stethoscopes, glucose monitors and pulse oximeters we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.

Overview

This tablet combines 1000 mg of calcium with 20 mcg, or 800 IU, of vitamin D3, 90 to a bottle, at around $4.50, the lowest price among the calcium products in this list. The label marks it gluten-free and non-GMO, with no added yeast or artificial flavors, and the maker markets it for bone strength.

It has built a solid following at this price point, with a 4.6 star average across roughly 1,000 reviews and about 1,000 units bought in the past month. That is a smaller scale than some of the bigger-name calcium brands, but the rating holds up well.

Its low price and smaller 90 count bottle size are what set it apart from the larger, higher-priced calcium products in this list, making it a lower-commitment option to try.

Specifications

FormTablet
Count90 Count
FlavorUnflavored
TypeCalcium, Vitamin D3
DietGluten Free
BenefitsBone Strength
AllergensGluten Free

Performance notes

This one ships as an unflavored tablet, 90 to a bottle, combining 1000 mg of calcium with 20 mcg of vitamin D3 rather than calcium alone. The label is gluten-free and non-GMO, with no added yeast or artificial flavors, and the maker markets it for bone strength.

What buyers say

With a 4.6 star average from about 1,000 reviews and roughly 1,000 units bought in the past month, this tablet has a smaller but solid following at its lower price point.

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More from 21st

Similar home health monitors: bathroom scales, blood pressure monitors, pregnancy and ovulation tests, thermometers, body composition monitors, stethoscopes, glucose monitors and pulse oximeters to consider

Frequently asked questions

How much calcium and vitamin D3 does each tablet provide?

The label lists 1000 mg of calcium along with 20 mcg, or 800 IU, of vitamin D3 per tablet.

Is this a good lower-cost option compared to other calcium tablets?

At around $4.50 for a 90 count bottle, it is priced lower than most other calcium products covered here, which can make it a reasonable option to try before committing to a larger, pricier bottle.

Should I talk to a healthcare professional before starting this?

This page is general product information, not medical advice. If you take medication or have a health condition, it is worth talking to a healthcare professional before adding any new supplement to your routine.

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