Gentile Food Bans: Halakhah and the Fear of Intermarriage challenges long-standing rabbinic and scholarly assumptions about the origins of dietary restrictions in Jewish law. Re-examining halakhic texts across centuries, this book argues that the early prohibitions against consuming Gentile bread and certain cooked foods were originally rooted in concerns over forbidden ingredients - not intermarriage. It was only later, in Babylonia, that the rationale of preventing intermarriage, mišum ?atnut (mishum hatnut), was introduced, particularly regarding Gentile bread, even when prepared under rabbinic supervision. Drawing on a wide range of sources - including biblical texts, Second Temple writings, tannaitic literature, and the Palestinian Talmud - this study shows that intermarriage was not a major societal concern or halakhic foundation in ?Ere? Israel, whereas the Babylonian context likely prompted the shift in rationale. The book presents a compelling socio-historical argument for how evolving communal realities shaped halakhic interpretation and enforcement. This work will appeal to scholars and students of Jewish studies, halakhah, rabbinics, and ancient Near Eastern history, as well as anyone interested in how legal traditions adapt to shifting cultural landscapes. It offers a fresh and rigorously documented perspective on the intersection of food, law, and identity in Jewish history.