Best Calcium Citrate Supplements 2026: Cost per Effective Dose
Top pick for Calcium Citrate: Citracal Maximum Plus Calcium Citrate with Vitamin D3 — 650mg per 2 caplets, $0.17/day. Our best-value pick.
Registry check · Calcium Citrate
Does anyone independently verify Calcium Citrate supplements?
We did not find any of these products in a public registry, and none of the listings names a certification mark. Where a listing names a mark, we say so in the table; where we could not find it in a registry, we say that instead.
The 4 products on this page checked against all 5,317 US NSF, USP and Informed Sport listings, 2026-08-25. Full method and limitations.
What Calcium Citrate labels show
Priced per day, these calcium citrate products run $0.17 to $0.22, across 3 brands.
All Calcium Citrate Supplements Compared
| Product | Brand | Dose / Serving | Cost / Day | Certification (as labelled) | Pick | Buy |
|---|---|---|---|---|---|---|
| Citracal Maximum Plus Calcium Citrate with Vitamin D3 | Citracal (Bayer) | 650mg / 2 caplets | $0.17 | None | Best Value | Buy |
| Solgar Calcium Citrate with Vitamin D3 | Solgar | 1,000mg / 4 tablets | $0.18 | None | Budget Pick | Buy |
| NOW Foods Calcium Citrate with Minerals & Vitamin D | NOW Foods | 600mg / 2 tablets | $0.22 | None | Buy | |
| Citracal Petites Calcium Citrate with Vitamin D3 | Citracal (Bayer) | 400mg / 2 caplets | $0.22 | None | Buy |
In-Depth Calcium Citrate Guides
Go deeper on calcium citrate — by goal, by form, and what the evidence actually supports:
Our Picks
Best Value: Citracal Maximum Plus Calcium Citrate with Vitamin D3
650mg per 2 caplets. $0.17/day. 90 servings per container at $14.96.
Budget Pick: Solgar Calcium Citrate with Vitamin D3
1,000mg per 4 tablets. $0.18/day. 60 servings per container at $20.85.
Dose check · Calcium Citrate
Most of these Calcium Citrate products need more than one serving to reach the studied dose
The research on Calcium uses 1,000 mg to 1,200 mg (elemental calcium, total from food PLUS supplements; a 1,250mg carbonate tablet = ~500mg elemental; absorb <=500mg elemental per dose). The products here are labelled from 400 mg to 1,000 mg a serving, so for most of them one serving is less than the studied dose. Citracal Maximum Plus Calcium Citrate with Vitamin D3 states 650 mg a serving, so it takes 2 servings to reach the studied amount. Check how many servings a product’s cost per day counts before you compare it.
The label trap on Calcium Citrate: the 1,000-1,200mg RDA is a TOTAL target (diet included), not a supplement dose; check the 'elemental calcium' line not compound weight
Method: studied range from our own Calcium Citrate dosage guide (PMID 11092412), checked against the 4 products above that state a dose — capsules in whole servings, powders in fractions. Trial doses, not a prescription.
The shelf · Calcium Citrate
The Calcium Citrate shelf is unusually consistent
Across 4 products from 3 brands, the cheapest day is Citracal Maximum Plus Calcium Citrate with Vitamin D3 at $0.17 and the priciest is Citracal Petites Calcium Citrate with Vitamin D3 at $0.22, a gap of 1.3×. With prices this close, which of these Calcium Citrate products has been independently checked matters more than the price.
Method: the 4 Calcium Citrate products above, compared on label facts, serving size, servings per container, form, price. Not a dosing recommendation.
How these 4 Calcium Citrate products were ranked
Not one of these 4 calcium citrate products could be confirmed in the NSF, USP or Informed Sport registries, so verification separates none of them and the ranking falls to cost per day at the labelled serving. Commission does not enter it: the rate is the same whichever calcium citrate you buy. Full methodology.