GoKawiilMedieval physicians ranked foods as hot, cold, wet or dry to guide health
Historical texts show medieval Europeans followed Galen's belief that food was central to medical treatment, classifying foods by their supposed qualities of hot/cold and wet/dry to determine their effect on the body. Physicians taught that eating properly balanced these qualities and prevented illness, tied to a theory of three-stage digestion occurring in the stomach, liver, and throughout the body. Diet quality also reflected social class, with the wealthy eating fine wheat bread while poorer people relied on coarser barley or rye.
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This history shows how deeply intertwined food, medicine, and social hierarchy were before modern physiology existed, with dietary advice functioning as medical treatment rather than mere nutrition. It also illustrates how scientific understanding evolves—concepts like constant blood generation were later overturned by discoveries such as William Harvey's theory of circulation.
- Medieval medicine treated diet as central to maintaining health and preventing disease.
- Foods were categorized by qualities like hot/cold and wet/dry rather than nutrients.
- Bread quality reflected social status, with the poor eating coarser grains believed to be less healthy.
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Published there as: “Fish Bad, Sugar Good and Other Medieval Ideas About Food”
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