Hi @catcher.007,
Welcome to the forum and thanks for your question.
It is difficult to say whether short-term fasting is good or not for Hep B as there haven’t been that many studies on it.
The hepatitis B foundation has some resources on fasting and how it can be harmful in some circumstances: Is Fasting Safe for People Living with Hepatitis B? - Hepatitis B Foundation
It is best to talk to your doctor about this first.
Cheers,
Thomas
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