PlainVitamins

A form of potassium

Potassium chloride supplements

1,494 potassium products in the NIH label database list potassium as potassium chloride (12% of the 12,166 potassium products); their median is 80 mg of potassium per serving, against 99 mg across all potassium products; the 22 whose only supplement ingredient is potassium list a median of 99 mg (DSLD version 9.4.0, January 2026).

How does potassium chloride compare with the other forms?

The median amount of potassium per serving in products naming each form; the count in brackets. The amount is the potassium the label gives, as printed (the Supplement Facts row normally states the element; a row named as the compound usually gives the compound's weight and is left out of these figures).

Median potassium per serving by form

Potassium by formPotassium citrate80 mg (1,756)Potassium chloride80 mg (1,494)Potassium bicarbonate170 mg (469)Potassium gluconate55 mg (283)
Potassium by formPotassium citrate80 mg (1,756)Potassium chloride80 mg (1,494)Potassium bicarbonate170 mg (469)Potassium gluconate55 mg (283)
Potassium by formPotassium citrate80 mg (1,756)Potassium chloride80 mg (1,494)Potassium bicarbonate170 mg (469)Potassium gluconate55 mg (283)
Potassium by formPotassium citrate80 mg (1,756)Potassium chloride80 mg (1,494)Potassium bicarbonate170 mg (469)Potassium gluconate55 mg (283)
Potassium by formPotassium citrate80 mg (1,756)Potassium chloride80 mg (1,494)Potassium bicarbonate170 mg (469)Potassium gluconate55 mg (283)

Source: Supplement Facts rows and their forms, NIH ODS Dietary Supplement Label Database version 9.4.0, current labels.

Products
1,4941,121 on the market
Median potassium per serving
80 mgall potassium products: 99 mg
Share of potassium products
12%1,494 of 12,166

Is the amount the potassium or the whole potassium chloride?

A Supplement Facts row normally states the potassium itself (a row like "Potassium (as potassium chloride)"); a row named as the compound (a row like "Potassium chloride") usually states the compound's weight, which includes what the potassium is bound to and is larger than the potassium it supplies. The front of a bottle may print either. Of the 1,494 products here, 1,445 give the potassium in its own row (74 of them an amount far outside what other labels list, or one their own %DV disagrees with); 28 give only a row named as the compound, left out of the medians and counts on this site; 21 give no amount of their own or one in another unit.

Source: Supplement Facts rows of each product's current label, NIH ODS Dietary Supplement Label Database version 9.4.0 (what counts as plausible).

What else do these products contain?

Ingredients most often listed alongside it, with the median amount in these products and in all products
IngredientShare of these productsMedian hereMedian, all products
Magnesium78% 100 mg86 mg
Calcium73% 162 mg115 mg
Vitamin B664% 10 mg6 mg
Vitamin C64% 150 mg100 mg
Zinc62% 15 mg11 mg
Vitamin D60% 10 mcg15 mcg
Vitamin B1260% 50 mcg36 mcg
Niacin60% 25 mg20 mg
Manganese59% 2.3 mg2 mg
Selenium57% 60 mcg55 mcg

Which products are they?

60 of the 1,494 (on-market products first, the newest label first), ordered by the amount of potassium per serving, largest first; an amount that looks like a slip or a compound's weight comes last, marked.

Source: NIH ODS Dietary Supplement Label Database version 9.4.0; the form each label names for its row. Daily Values: the FDA's Daily Value page.

Which brands make them?

Douglas Laboratories (55), NOW (36), Vitamin World (24), Bronson (22), Protocol For Life Balance (21), Trace Minerals Research (21), 21st Century (19), Nature's Bounty (18), Nature's Way (18), Mass Probiotics (17).

Where next?