NOW Supplements, Kelp 325 mcg of Natural Iodine, Supports Healthy…

Our verdict

NOW Supplements, Kelp 325 mcg of Natural Iodine, Supports Healthy… works out to $0.05 per serving of iodine, at 325mcg per serving in capsule form. That puts it the cheapest quarter of the 21 iodine products we can price per dose, where the typical serving costs $0.05, a Value Index of 1.2 where the median product is 1.0. One container lasts 250 days at the label dose of 1 serving a day, about $1.41 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.