Potassium

They are different salts of potassium, and the same weight of each contains a different amount of potassium. Labels therefore state the potassium itself per serving, for example 448 mg of potassium from about 1.4 g of potassium citrate powder. Compare that line and the serving size.

99 mg per capsule or tablet is a common label strength, about 5 % of the 2,000 mg nutrient reference value. Products with more potassium per serving usually count several capsules or a measured spoon of powder as one serving, so check how many units make up a serving on each label.

The serving size, how often it may be repeated, the maximum per day and the warnings. Ask a pharmacist or doctor before use if you take medicines or have a medical condition.