Doctors settle debate over drinking coffee on an empty stomach and potential health risks

Fox News · Sadie Chafe · 2026-11-02 11:00 UTC

Gastroenterologists weigh in on whether coffee on an empty stomach truly spikes cortisol levels or causes acid reflux and other GI symptoms.

Drinking coffee on an empty stomach is a somewhat controversial practice, with claims circulating on social media that it spikes levels of the stress hormone cortisol and harms the gut, but some gastroenterologists say it's not harmful.

One social media post claimed that drinking coffee on an empty stomach can damage the lining that protects the gut from stomach acid, and in a post on TikTok, a medical professional advised against drinking coffee on an empty stomach, saying that it can cause a spike in cortisol levels.

Cortisol is a steroid hormone produced by the adrenal glands, which are located on top of the kidneys. It helps regulate the body's response to stress, and high or low cortisol levels can affect a person's health, according to the Cleveland Clinic.

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