Nutricost Potassium Citrate 99mg, 500 Capsules Go to amazon.com Related posts Which are the best potassium capsules available in 2022? FeatureMaximum Serving Size 99mg of Potassium Citrate Per Capsule500 Capsules Per BottleGuaranteed Quality and Purity99mg Per CapsuleNon-GMO, Gluten Free and Made in the USA DescriptionPotassium Citrate is made up of citric acid and potassium.