The headline “Doctors say eating onions causes…” is incomplete clickbait. Eating onions does not generally cause a dangerous health condition in healthy people.
There is one legitimate issue: onions can trigger heartburn or reflux in some people, particularly people who already have reflux. One clinical study found that raw onion increased reflux measures in people with heartburn, although it did not have the same effect in people without heartburn. (PubMed)
On the other hand, onions are nutritious and research has investigated potential beneficial effects on cholesterol, blood pressure, and other metabolic measures. Evidence for these benefits isn’t a reason to use onions as a treatment, but it certainly doesn’t support the idea that onions are inherently harmful. (PubMed)
Bottom line: If onions consistently cause you heartburn, bloating, or stomach discomfort, reducing them may help. Otherwise, there’s no general reason to avoid onions.
If you send me the text after “Doctors say eating onions causes…”, I can check the exact claim.
