Nature Made Calcium 600 mg with D3, 220 Tablets
600 mg of calcium as carbonate plus 400 IU (10 mcg) of vitamin D3 in 1 tablet
$14.36
In stock · price checked November 12, 2026
Free shipping on orders over $35
220 tablets · $0.07 a tablet · $0.11 per 1,000 mg of calcium
USP Verified
This exact tablet is on USP's Verified list.
Buy nowOur take
One tablet packs 600 mg of calcium and 400 IU of vitamin D3 together, so a single pill covers both jobs. The calcium comes as carbonate.
The directions allow up to two tablets a day, so a 220 count bottle lasts 110 days at the top of that range. Our calcium with vitamin D comparison sets it beside the other tablets we track.
Choose it for a USP-listed calcium and D3 tablet. Prefer a larger count? 21st Century has 400 tablets of 600 mg calcium without vitamin D (see below).
Key facts
| Calcium in each tablet | 600 mg, as calcium carbonate |
|---|---|
| Vitamin D3 in each tablet | 10 mcg, which is 400 IU |
| Tablets in the bottle | 220 |
| Directions | Up to two tablets a day |
| Cost per tablet | $0.07 at $14.36 |
| Cost per 1,000 mg of calcium | $0.11 |
| Testing | USP Verified (USP's list names Nature Made Calcium 600 mg with Vitamin D3 Tablets) |
Common questions
How many Nature Made calcium tablets can I take in a day?
The label allows up to two tablets a day. Each tablet holds 600 mg of calcium.
Is this calcium tablet listed by USP?
Yes. USP's Verified list includes Nature Made Calcium 600 mg with Vitamin D3 Tablets, and the Amazon title carries the USP Verified line too.
What form of calcium is in it?
Calcium carbonate. A tablet gives 600 mg of elemental calcium, which is the calcium itself, not the weight of the whole compound.
How long does the 220 count bottle last?
It lasts 220 days at one tablet a day. The price was $14.36 on November 12, 2026, or $0.07 a tablet.
