Paul Ingram, who manages a ranch in rural Texas, is not the type you would normally associate with a weight-loss fad. But a year ago he finally got fed up with lugging his 320lb (145kg) frame around all day in the heat. His family has a history of heart disease. As a result of covid-19, he had become painfully aware of the risks of obesity. His efforts to lose weight through diet and exercise had gone nowhere. “I needed some help.”
So his…