The 15th MMM in the series "To eat or not to eat. Ethik der Esskulturen" took place on May 10, 2023 in the Atrium Maximum of Johannes Gutenberg University. This time the focus was on the ethics of abstaining from food. Renowned speakers from various disciplines discussed religious fasting in Judaism and Jainism, veganism, politically motivated hunger strikes, and fasting with the purpose of dying.