The record for coffee drinking goes to a certain Mr. Gemstock of Cleveland, Ohio, who drank 72 cups of coffee in 24 hours.
Voltaire drank a minimum of 50 cups of coffee with chocolate (Cobalamin Tonic?) a day. (Some estimates go as high as 80.)
Beethoven drank strong coffee, using 60 beans per cup.
William H. Ukers, M.A., wrote (in All About Coffee, Second Edition, 1922, 1935) …
“Fontenelle and Voltaire have both been quoted as the authors of the famous reply to the remark that coffee was a slow poison: ‘I think it must be, for I’ve been drinking it for eighty-five years and am not dead yet.'”
Ukers also cited the case of Elizabeth Durieux, who, despite drinking as many as forty small cups of coffee per day, still managed to reach the age of 114.
Me? I stick to one large cup of Cobalamin Tonic (coffee, cocoa, & 100% grade B maple syrup) after finishing breakfast — not before or during the meal itself.