








💪 Elevate your bone game with science-backed strength!
21st Century Calcium 500 mg Plus D3 Tablets deliver a potent daily dose of calcium sourced from oyster shell, paired with vitamin D3 to optimize absorption. This gluten-free, no artificial flavor formula supports bone health with trusted quality from a brand with over 30 years of expertise. With 400 tablets per bottle, it offers convenient, flexible dosing for health-conscious adults aiming to maintain strong bones and overall wellness.













| ASIN | B00H3KR9WC |
| Age Range Description | Adult |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #86,514 in Health & Household ( See Top 100 in Health & Household ) #506 in Calcium Mineral Supplements #3,828 in Sales & Deals |
| Brand | 21st Century |
| Brand Name | 21st Century |
| Concentration | 500 Mg |
| Customer Reviews | 4.7 out of 5 stars 1,742 Reviews |
| Diet Type | Gluten Free |
| Flavor | Unflavored |
| Global Trade Identification Number | 00740985275238 |
| Item Form | Tablet |
| Item Nype Name | Calcium Supplement |
| Item Weight | 1.48 Pounds |
| Manufacturer | 21st Century HealthCare, Inc. |
| Material Type Free | Gluten Free, No Artificial Colors, No Artificial Flavors |
| Number of Items | 1 |
| Primary Supplement Type | Calcium, Vitamin D3 |
| Product Benefits | Bone Strength |
| UPC | 740985275238 |
| Unit Count | 400 Count |
L**N
Price
Great product and great price!
S**A
Calcium Plus Vitamin D
This was exactly what I needed, and so far I am happy with it. It’s also a lot of bang for the buck. C
S**D
Good product for less than my prescription
Was ordering similar product with half the pills for the same price from the pharmacy
M**X
Good quality supplements
Good supplements. Have been taking them for a while. Only once, a bottle came already opened. They gave me a refund and told me to keep the bottle. But I was not going to use those pills. So I had a bottle of unusable pills to get rid of. Still, it was good customer service, which I appreciate.
L**Y
Good replacement for OsCal
These are a good replacement for the now-discontinued OsCal calcium supplements. I use them twice daily, and after several months my labs still are great.
D**R
good price
good item
L**.
Great calcium
I purchased these for every day use. I canceled my Costco card. And therefore this was the next best thing. I am happy with them.
H**N
Good product for the price
Bottle of 400 tabs is huge -- approx 6" tall X 3" wide. Value for the money.
Trustpilot
2 days ago
3 days ago