21st Century Calcium Supplement, 600 mg, 400 Count: A gluten-free, budget-friendly calcium carbonate option
Gluten-free labeling appears in related listings, with no explicit gluten-containing ingredients noted in the provided data; however, formal certification is not evidenced.
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- Excellent value for a 400-tablet bottle
- Calcium carbonate-based; no Vitamin D added
- Gluten-free and vegan-friendly branding evident in related listings
- Tablet is coated and reported as easy to swallow by some users
- Very large oblong tablets can be hard to swallow for some buyers
- Bottle/delivery quality issues in some cases
- No explicit certification noted in the available data
Gluten safety details
Gluten-free labeling appears in related listings, with no explicit gluten-containing ingredients noted in the provided data; however, formal certification is not evidenced.
What to expect
A single 400-tablet bottle of 600 mg elemental calcium per tablet (calcium carbonate). No Vitamin D is added in this formulation per user reviews. The tablets are large and oblong but coated for easier swallowing; unflavored in taste. Use typically involves daily dosing of 1-2 tablets, yielding several weeks to a year of supply depending on intake.
- budget-conscious adults needing a high-count calcium carbonate supplement
- individuals seeking a gluten-free, vegan-friendly option for bone health support
- buyers who require vitamin D in their calcium supplement
- those who are sensitive to large tablets or want guaranteed certification labeling
The full guide
Product snapshot
The product comes in a 400-count bottle and delivers 600 mg of elemental calcium per tablet, formulated as calcium carbonate. Reviews indicate it is gluten-free in labeling and vegan-friendly in ancillary listings, with no Vitamin D included in this formulation per user notes. The price is around $14.58, and the product carries a high user rating (4.7) from thousands of reviews, suggesting strong perceived value and effectiveness for bone health support. Consumers should expect a long supply from a single bottle, depending on daily dosage.
Gluten safety and labeling
The product is labeled gluten-free in related listings, which supports suitability for people avoiding gluten. However, there is no explicit evidence of formal gluten-free certifications (such as GFCO or NSF) in the provided data. Cross-contact risk details are not specified, so users may want to verify packaging labeling at purchase. Overall, gluten-free labeling appears to be present, contributing to a likely safe choice for many with celiac disease or gluten sensitivity.
Taste, texture, and how to use
Users describe the tablets as large and oblong, with some noting a coating that aids swallowing. While the coating helps some people, others find the size challenging. The product is unflavored, and the common use case is taking one or more tablets daily to achieve 600 mg per tablet dosage. Because this formulation emphasizes calcium carbonate with no added Vitamin D, some users report favorable results even without Vitamin D, though individual needs vary.
Who it’s for and practical tips
This option is well-suited for budget-conscious adults seeking a high-count calcium carbonate supplement that is gluten-free and vegan-friendly. It may be less ideal for people who require Vitamin D in their calcium supplement, or for those who are sensitive to taking large tablets. When ordering, consider the potential for delivery issues (e.g., cap damage) reported by some buyers and confirm the gluten-free status on packaging if certification is important for your needs.
What shoppers say
💚 People liked
Great value for the amount and price
Quality feel and effectiveness as a calcium supplement
People report it works for bone-support and even note better results than supplements with vitamin D
Bottle lasts a long time; easy to order and ship quickly
⚠ People flagged
Large size of tablets and occasional coating issues
Bottle cap/lid damage reported on delivery
Lack of explicit certification on gluten-free status
Key takeaways
- High-count, value-focused calcium carbonate option
- Gluten-free labeling appears in related listings; formal certification not evidenced
- Big, coated tablets may be easy for some to swallow but challenging for others
- No Vitamin D added; check vitamin needs before purchase
Evidence gaps for this product:
- No explicit, formal gluten-free certification (GFCO/NSF) evidenced in the provided data
- Cross-contact risk details are not specified
- Official labeling of 'gluten-free' on packaging not shown in the supplied data
- Limited primary-source confirmation for vegan status beyond ancillary listings