He developed the "Wallace system", promoting a vegetarian diet free of fermented foods, and sold patented medicines alongside consultations.

[6] In 1885, with his wife, he co-wrote Physianthropy: Or, the Home Cure and Eradication of Disease, writing under the pseudonym "Lex et Lux".

Those who delivered speeches included Wallace (then aged 84), C. P. Newcombe, T. A. Hanson, Samuel Saunders, John E. B.

[8] Wallace and his wife were included in Charles W. Forward's Fifty Years of Food Reform: A History of the Vegetarian Movement in England (1898).

[1] Rollo Russell cited Wallace's dietary recommendations in the "Medical Testimony" section of his 1906 book Strength and Diet.