This is the curative and preventive promise the energetic mechanism was made to support: that ordering one’s eating by the food-energy hierarchy strengthens the living force and prevents and helps to overcome disease. The disease-prevention promise is documented in Bircher-Benner’s own title The prevention of incurable disease (1938). The claim is recorded as mechanism-only and untested because no controlled human outcome study ever measured an effect of the regimen on chronic-disease incidence; the case rested on the posited energy mechanism, on clinical impression at the sanatorium, and on the reform ideology that historians describe as a “moral physiology” (Meyer-Renschhausen and Wirz, Medical History 1999). Contemporary official medicine did not recognise the nutrition theory (swissinfo.ch 2025). What later acquired evidence is the general value of fruit and vegetables in the diet, not the claim that an energetic “order” diet prevents disease and conserves a living force. The archive places the case in the dietetic-vitalist longevity lineage (with Hufeland, Metchnikoff, and Kellogg) on the strength of that vital-force framing, not on any measured lifespan claim by Bircher-Benner.