GNC Calcium Citrate 1000mg, Supports Strong Bones, 180 Caplets

Our verdict

GNC Calcium Citrate 1000mg, Supports Strong Bones, 180 Caplets works out to $0.11 per serving of calcium, at 1000mg per serving in tablet form. That puts it below the median of the 98 calcium products we can price per dose, where the typical serving costs $0.15, a Value Index of 1.3 where the median product is 1.0. One container lasts 180 days at the label dose of 1 serving a day, about $3.33 a month. We could not verify a third-party certification for GNC in a public registry. Worked out from the current retail price as of 2026-11-13; confirm the live price on Amazon.com before buying.