Diet and nutrition have been implicated in migraine for decades. Not only have a variety of nutritional migraine attack triggers been proposed, but a myriad of specialized diets have been evaluated in migraine prevention. Accordingly, diverse recommendations on beneficial dietary and nutritional modifications have emerged. These differences may be daunting to interpret for patients and providers alike. We seek to summarize available evidence to help guide decision-making in diet and nutrition migraine management. In this chapter, we highlight “what not to eat” and what dietary triggers are supported by the literature while including the divergent evidence suggesting triggers may be misconstrued as the premonitory phase of a migraine attack. We further review “what to eat,” namely which specific diets have supporting evidence sufficient to promote their use, not only to directly prevent migraine but also to indirectly prevent migraine through weight loss.