Nigeria, Oct. 31 -- Billionaire investor Warren Buffett, 96, told fellow billionaire Bill Ackman that he has not drunk water in 48 years. Ackman repeated the remark on the Equity Mates Investing podcast.

Ackman, founder and chief executive of Pershing Square, said Buffett came to dinner at his home several years ago. Ackman had stocked Cherry Coke, Buffett's favourite drink. At the table, he offered Buffett still or sparkling water but Buffett declined and asked for the soda.

Ackman asked whether he never drank water. He said Buffett replied: "Bill, I haven't had water in 48 years."

Ackman did not give Business Insider more detail about Buffett's habits. Neither report includes a comment from Buffett. The claim rests on Ackman's accou...