This fascinating article in Atlas Obscura talks about the power of healing foods. With a long history of research, it is now possible to access the archive --
Half a century after Professor Wayland Hand started it, a group of UCLA researchers has made the Archive of Healing available to the public. Now a searchable database, the Archive of Healing includes 700,000 pieces of data, digitized from more than 1 million index cards, ranging from folk sayings and rituals to incantations and recipes. The archive represents 50 years of research spanning six continents, two centuries of ethnographic study, and 3,200 journal articles. According to the current director, David Delgado Shorter, Professor of World Arts and Cultures/Dance at UCLA, it’s one of the five largest archives of healing-related knowledge in the world. The UCLA archive is unique in the breadth of cultures it represents—and in its approach to that representation.