According to Keren Blankfeld in “Control Freak: Retailer Abilio Diniz is the most disciplined businessman in Brazil. One of the richest, too.”
Diniz says the key to staying on top is discipline and organization. He spills some of his secrets in a 2004 self-help/autobiography, Caminhos e Escolhas: O equilíbrio para uma vida mais feliz (“Paths and Choices: The Balance for a Happier Life”), reducing better living to six tenets–physical activity, nutrition, stress management, self-knowledge, love and faith. Diniz adheres to them all, almost pathologically and sometimes simultaneously. He exercises for three hours each day, praying while running on a treadmill, praying on his drive to work, praying while swimming laps in a pool. He’s on a diet of five “balanced” meals a day, plus vitamins and fiber supplements, avoiding fats and alcohol, and eating lots of fruit. He checks in with his psychotherapist once a week and attends a Catholic mass every Sunday.
According to Tom Junod
Koko was much bigger than Mister Rogers. She weighed 280 pounds, and Mister Rogers weighed 143. [65 kg] Koko weighed 280 pounds because she is a gorilla, and Mister Rogers weighed 143 pounds because he has weighed 143 pounds as long as he has been Mister Rogers, because once upon a time, around thirty-one years ago, Mister Rogers stepped on a scale, and the scale told him that Mister Rogers weighs 143 pounds. No, not that he weighed 143 pounds, but that he weighs 143 pounds…. And so, every day, Mister Rogers refuses to do anything that would make his weight change–he neither drinks, nor smokes, nor eats flesh of any kind, nor goes to bed late at night, nor sleeps late in the morning, nor even watches television–and every morning, when he swims, he steps on a scale in his bathing suit and his bathing cap and his goggles, and the scale tells him he weighs 143 pounds. This has happened so many times that Mister Rogers has come to see that number as a gift, as a destiny fulfilled, because, as he says, “the number 143 means `I love you.’ It takes one letter to say ‘I’ and four letters to say `love’ and three letters to say `you.’ One hundred and forty-three. `I love you.’ Isn’t that wonderful?”
According to Wikipedia, Mr. Rogers was a Presbyterian minister and not a marine sniper.
See also “Stop trying to lose weight“.