How much potassium is in iceberg lettuce?

102 milligrams of potassium in 1 cup shredded

Potassium in other portions of iceberg lettuce
Portion	Potassium
1 cup, chopped (1/2 inch pieces, loosely packed)	80 milligrams of potassium in 1 cup, chopped (1/2 inch pieces, loosely packed)
1 head, large	1,065 milligrams of potassium in 1 head, large
1 head, medium (6 inch across)	760 milligrams of potassium in 1 head, medium (6 inch across)
1 head, small	457 milligrams of potassium in 1 head, small
1 leaf, large	21 milligrams of potassium in 1 leaf, large
1 leaf, medium	11 milligrams of potassium in 1 leaf, medium
1 leaf, small	7 milligrams of potassium in 1 leaf, small
100 g	141 milligrams of potassium in 100 g

See everything in a serving of Lettuce, iceberg

Where these numbers come from

USDA FoodData Central, SR Legacy, record 169248. The source describes it as: Lettuce, iceberg (includes crisphead types), raw.

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).