How much potassium is in 1 slice of whole wheat bread?

81 milligrams of potassium in 1 slice

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

Potassium in other portions of whole wheat bread
Portion	Potassium
1 ounce	72 milligrams of potassium in 1 ounce
100 g	254 milligrams of potassium in 100 g

See everything in a serving of Whole wheat bread

Where these numbers come from

USDA FoodData Central, SR Legacy, record 172688. The source describes it as: Bread, whole-wheat, commercially prepared.

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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