How much potassium is in 1 slice of white bread?

37 milligrams of potassium in 1 slice

Typical value: brands differ, so check the label. Check a label

Potassium in other portions of white bread
PortionPotassium
1 ounce36 milligrams of potassium in 1 ounce
1 cup, crumbs57 milligrams of potassium in 1 cup, crumbs
1 cup, cubes44 milligrams of potassium in 1 cup, cubes
1 slice, large38 milligrams of potassium in 1 slice, large
1 slice crust not eaten15 milligrams of potassium in 1 slice crust not eaten
1 slice, thin25 milligrams of potassium in 1 slice, thin
1 slice thin, crust not eaten11 milligrams of potassium in 1 slice thin, crust not eaten
1 slice, very thin19 milligrams of potassium in 1 slice, very thin
100 g126 milligrams of potassium in 100 g

See everything in a serving of White bread

Where these numbers come from

USDA FoodData Central, SR Legacy, record 174924. The source describes it as: Bread, white, commercially prepared (includes soft bread crumbs).

U.S. Department of Agriculture, Agricultural Research Service, Beltsville Human Nutrition Research Center. FoodData Central. [Internet]. [cited 11 October 2026]. Available from https://fdc.nal.usda.gov/. Releases used: Foundation Foods, April 2026; SR Legacy, April 2018; Survey Foods (FNDDS 2021-2023), October 2024.

Data built on 11 October 2026 (data-2026-10-11).

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