Profile accounts are free and we don't care if you make up a name, but all fields are required and your email address must be valid. This allows us to save your food entry data and analyze your diet for you, and allows you to track your weight and receive specific dietary recommendations for your age, sex, height, and weight. If you don't care about those features your profile is not required and you can still analyze any food, look up foods highest in certain nutrients, view News and some other features, but you will not be able to use some of the most powerful features of this Web site.