George Frederick Laidlaw, The Treatment of Hay Fever by rosin-weed…
“ The plain people long ago crystallized their experience in diet in the maxim that what is one man's meat is another man's poison, but your scientist will never believe anything until he sees it in a test-tube and physicians have kept on a few centuries behind the rest of the world prescribing diet for all cases of the same disease irrespective of whether or not it agreed with the patient. Witness the rigid diets for tuberculosis and Bright's disease. So, inevitably, there had to be a diet for hay fever and equally inevitably, the same diet did not agree with everybody. ”
