Country star Carrie Underwood is so worried about her weight, she writes down the calorie details of everything she eats. The Jesus, Take The Wheel singer admits she pays more attention than she should on the food she consumes. Underwood tells American magazine Glamour, "I'm slightly obsessive-compulsive about what I eat, more than I should be. "I write down everything I eat. I started doing it last year (06). And in the last year is when I've gotten more healthy and lost weight."