Practices Girth Control is a term used to describe the process of controlling one's weight through dieting. Dieting, which is a five-letter word in this crossword puzzle, is the practice of eating food in a regulated and supervised fashion to decrease, maintain, or increase one's body weight. It is often done in order to improve health, or to change appearance through slimming. Dieting can also be used as a form of girth control, which is the practice of controlling one's waist size or body shape.