Berberine is often promoted for bloodsugar, cholesterol, weight loss, and metabolic health. But a 2026 case reportdescribes a 36-year-old woman who developed a dangerous heart rhythm problemafter taking berberine.

In this episode, I break down what happened inplain Englishand discuss why “natural” does not always mean safe. I also cover thelimitations of the report, whether this is the only known case involvingberberine

If youtake berberine or several supplements and are not sure what is worth keeping,this episode may help you think more carefully about what you are putting inyour body.

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About

Sincethe 1990s I’ve been sorting nutrition facts from fiction and helping peopleunderstand dietary supplements, using clinical research as my litmus test. I amindependent and unbiased. I analyze the research so you don’t have to.

I wrotethe first book about exercise-induced rhabdomyolysis.

I havean MS in exercise science and a BS in biology & chemistry.

Disclaimer

Episodes are for informationonly. I’m NOT a medical doctor. NO medical advice is given or implied. ALWAYSconsult your physician for the best health advice for you. I participate in theAmazon Associates program which means if you click on a link to amazon and makea purchase, I may make a small commission at no extra cost to you.