E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Doing Banting. Reducing superfluous fat by living on meat diet, and abstaining from beer, farinaceous food, and vegetables, according to the method adopted by William Banting, a London cabinet-maker, once a very fat man (born 1796, died 1878). The word was introduced about 1864.