21st
21st Century Calcium Citrate + D3 Petites Coated Tablets 200 ea
$8.982,000+ bought last month
View on Amazon
21st Century Calcium 600 mg Supplement (400 Tablets), Vegan-Friendly Bone Strength Calcium Supplement, Non-GMO & Gluten-Free Calcium Carbonate, No Artificial Flavors, Suitable for Men & Women Review
Our verdict
A large-count, no-frills calcium carbonate tablet at a low per-tablet cost, marketed as vegan-friendly and free of artificial flavors.
Check price on AmazonBest for
Shoppers who want a long-lasting, budget-priced calcium carbonate supplement without dyes or gluten.
Skip if
You want added vitamin D3 or magnesium bundled in, since this formula lists calcium carbonate alone.
- Priced 40% below the category median ($19.99 across 107 tracked models)
Pros
- Large 400-count bottle lowers the cost per tablet
- Marketed as vegan-friendly, non-GMO, and gluten-free
- No artificial flavors added
- High 4.7 average across thousands of ratings
Cons
- No vitamin D3 or magnesium included in this formula
- Tablet form may not suit people who prefer chews or capsules
Our scorecard
4.7/5
overall
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Owner rating4.7/5
4.7 average across 6,495 owner ratings
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Popularity4.2/5
6,495 owner reviews, more 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
["21st Century's Calcium 600 mg comes in a large 400-tablet bottle, aimed at buyers who take a daily calcium carbonate tablet and don't want to reorder often. The label markets it as vegan-friendly, non-GMO, and gluten-free, with no artificial flavors added, which appeals to shoppers who read ingredient panels closely.", "Because it's calcium carbonate rather than a chelated or citrate form, the maker positions it as a straightforward bone-support option rather than a multi-mineral blend. It doesn't list added vitamin D or magnesium the way many combination calcium products do, so people who want the two together would need a separate D3 tablet or a different product.", 'With over 6,400 ratings, it holds a 4.7 out of 5 average and roughly 5,000 buyers reported in the last month, a volume that suggests the pill size and count work fine for most repeat users.']
Performance notes
Supplied as calcium carbonate tablets in a 400-count bottle, one of the largest counts in this calcium lineup. The listing highlights vegan-friendly, gluten-free, and non-GMO claims plus no artificial flavors, pointing to a plain, straightforward product rather than a fortified multi-nutrient blend.
What buyers say
With 6,495 ratings averaging 4.7 out of 5 and about 5,000 buyers in the past month, sentiment reads as strongly positive and the volume suggests consistent repeat purchases.
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
- 21st
21st Century Calcium Citrate + D3 Petites Coated Tablets 200 ea
$8.982,000+ bought last monthView on Amazon
Frequently asked questions
Does this calcium supplement include vitamin D3?
Based on the available product information, this listing centers on calcium carbonate and doesn't list added vitamin D3. Shoppers who want both nutrients together may want to check a combination product or talk with a healthcare professional about pairing this with a separate D3 supplement.
Is this calcium supplement suitable for vegans?
The maker markets it as vegan-friendly, along with non-GMO and gluten-free claims. Check the label yourself for confirmation before purchase, and talk to a healthcare professional if you have specific dietary requirements.