The document discusses how identity is constructed through blogging about dieting. It analyzes a Polish dieting website called Dieta.pl that has over 1,000 diet blogs. These blogs present identity as reflexive projects where the self is constantly monitored and structured through calorie counting, meal planning, and body regimes. Blogging about dieting allows people to simultaneously structure their lives and express their identities online in a way that is intertwined with diet lifestyle constraints.