Antibiotics can cause weight gain.
It’s not unusual for me to hear a story from a patient like this: “I don’t know what happened. I was doing really well with weight loss, but then suddenly I just ballooned.”
When I hear that I ask: “Did you take antibiotics sometime in the last 3-4 months?” Very often, the answer is: “Um… Oh right! Yes, I did.”
Weight gain from antibiotics is a clinical reality. The research is finally starting to catch up.