NOW Supplements, Potassium Gluconate 99mg, Easier to Swallow, 250 Tabs

Our verdict

NOW Supplements, Potassium Gluconate 99mg, Easier to Swallow, 250 Tabs works out to $0.04 per serving of potassium, at 99mg per serving in tablet form. That puts it below the median of the 35 potassium products we can price per dose, where the typical serving costs $0.06, a Value Index of 1.3 where the median product is 1.0. One container lasts 250 days at the label dose of 1 serving a day, about $1.32 a month. We could not verify a third-party certification for NOW 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.