Four years ago, Cole Prochaska weighed over 585 pounds — the highest his scale could measure. Now 41, after trading a 5,000-calorie daily diet for daily walks, he’s lost about 360 pounds and transformed his life.

Cole’s struggle with weight began in childhood. His overeating habits included several bags of chips and a 12-pack of soda a day, plus large fast-food meals. He lived a sedentary lifestyle and felt isolated and self-conscious, avoiding social situations.