Fresh produce giant Taylor Farms is preparing to recall ingredients linked to a parasite outbreak that has caused severe diarrhea and sickened thousands of people in Michigan and nearby states, according to a report.

The California-based lettuce supplier told federal regulators that it was preparing a recall tied to the widening cyclospora outbreak, Bloomberg News reported Friday, citing a document viewed by the outlet. The parasite can cause severe diarrhea, fatigue and nausea.

The scope of the recall was not immediately clear.

The move would mark the clearest sign yet of a potential source of the outbreak, which prompted Taco Bell earlier this week to remove some lettuce from restaurants in the Midwest.

Federal health officials on Thursday linked the illnesses to shredded lettuce served at the fast-food chain and pointed to a single supplier.

Taylor Farms did not immediately respond to The Post’s request for comment. The US Food and Drug Administration also did not immediately respond to a request for comment.