📜 Theorem, law or theory

Lee Je-ma's Sasang constitutional medicine

Medicina constitucional Sasang de Lee Je-ma

Date
1894 · confidence high
Place
Hamhung, North Korea
Credited to
Lee Je-ma
People
👤 Yi Je-ma1837–1900
Field
Life & health

What was discovered

A medical system that classifies people into four constitutions (Taeyang, Soyang, Taeeum and Soeum) and tailors diet and drugs to each. Lee Je-ma set it out in his 'Dongui Suse Bowon' (1894) and it is traditional Korean medicine's original contribution to medical theory.

It is a traditional diagnostic theory; clinical trials to validate it remain limited and there is no scientific consensus on its efficacy.

What it led to

  • constitutional medicine in Korean Eastern medicine
  • tailoring diet and treatment by constitutional type
  • current studies correlating it with genetics and metabolic traits
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Sources✓ verified 2026-11-04