Your morning bowl of oatmeal comes with a dose of a carcinogen, a Brooklyn man claims in a class-action lawsuit.

Quaker Oats says its ubiquitous breakfast food is “100% Natural” but that’s “false, deceptive and misleading,” because the company uses a chemical called glyphosate in processing its oats, court papers say.

Glyphosate is a widely used herbicide. The World Health Organization declared the substance as “probably carcinogenic to humans” in 2015.

The substance is used both as a weed killer and “is sprayed on the oats as a drying agent shortly before harvest,” claims Lewis Daly in his Brooklyn federal court lawsuit.

Daly is seeking $5 million damages. Quaker Oats could not be reached for comment.

The story originally appeared on NYPost.com.