How much phosphorus is in 1 cup of oatmeal cooked with water?

180 milligrams of phosphorus in 1 cup

Phosphorus in other portions of oatmeal cooked with water
Portion	Phosphorus
1 tablespoon	11 milligrams of phosphorus in 1 tablespoon
¾ cup	135 milligrams of phosphorus in ¾ cup
100 g	77 milligrams of phosphorus in 100 g

See everything in a serving of Oatmeal, cooked with water, no salt

Where these numbers come from

USDA FoodData Central, SR Legacy, record 173905. The source describes it as: Cereals, oats, regular and quick, unenriched, cooked with water (includes boiling and microwaving), without salt.

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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