Product photo 1 of 2
Scored forOutcome alternatives
Natural Factors90 count • 90 servingsAvailable now$8.79$0.10 / serving4.8 · 14,009 ratings66 / day
70−14 pts from leader
#144 of 9948 ranked for kidney stone riskLeader · KAL, KAL, Calcium Citrate 1000, 180 Tablets (333 mg per Tablet) — 84
Why this ranks #144 for kidney stone risk
- Evidence fitCalcium Citrate and Calcium have moderate human evidence for this outcome.
- Dose fit0 of 2 dosed ingredients land in the studied range. Calcium Citrate at 350 mg sits below the studied 400-1000 mg window.
- Price / serving$0.10 per serving — low price tier for this outcome.
- AvailabilityIn stock across major retailers; 99% availability confidence.
- TrustStrong trust signals — consistently high marks from verified buyer ratings.
Trade-offsDose fit is the weak spot on this listEvidence depth trails the rest of this list
The numbers · Kidney stone riskWhat's inside
70
72
39
99
350 mgBelow rangebelow the studied 400-1000 mg window
350 mgBelow rangebelow the studied 1000-2000 mg window
Retailer links may be affiliate links. Rankings and placement are not paid placement.
