Best Calcium Citrate Supplements (2026) — Ranked by 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.
All Calcium Citrate Supplements Compared
All 4 products sorted by cost per clinically-effective daily dose (lowest first). Dose, certification, and pricing verified against NIH DSLD and manufacturer data.
| Product | Brand | Dose / Serving | Cost / Day | Certification | 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 | 1000mg / 4 tablets | $0.17 | None | Budget Pick | Buy |
| NOW Foods Calcium Citrate with Minerals & Vitamin D | NOW Foods | 600mg / 2 tablets | $0.20 | None | Buy | |
| Citracal Petites Calcium Citrate with Vitamin D3 | Citracal (Bayer) | 400mg / 2 caplets | $0.32 | None | Buy |
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
1000mg per 4 tablets. $0.17/day. 60 servings per container at $19.99.
How We Rank Calcium Citrate Supplements
Every product is evaluated on three criteria:
- Cost per clinically-effective daily dose. Not cost per pill or cost per bottle. We calculate what it actually costs per day to take the dose used in clinical trials.
- Third-party certification. USP Verified, NSF Certified for Sport, and ConsumerLab Approved indicate independent testing for purity, potency, and contaminants.
- Bioavailable form. We prioritize products using the specific chemical form shown to be most effective in published research.
Rankings are not influenced by affiliate commissions. We earn the same commission regardless of which product you choose. Read our full methodology.
Personalize Your Calcium Citrate Choice
Not sure which calcium citrate supplement is right for you? Use our free tools:
- DNA Supplement Analyzer — upload 23andMe or AncestryDNA data to check for genetic variants affecting calcium citrate metabolism. Runs entirely in your browser.
- Lab Results Interpreter — enter your blood test values to get personalized dosing recommendations.
- Supplement Stack Builder — build a complete protocol based on your age, sex, medications, and goals.
- Supplement Audit — already taking calcium citrate? Check if you have the right form and dose.