The South Beach Diet restricts carbohydrates - carbs, as diet dilettantes like to say. True, good carbs are allowed, but South Beach dieters must say goodbye to potatoes, fruit, bread, cereal, rice, pasta, beetroot, carrots, and sweet corn for the first two weeks.
Normatively definition, of or relating to a norm, especially an assumed norm regarded as the standard of correctness in behavior, speech, writing, etc. See more. Dictionary.com
Many researchers in this field try to restrict the use of the term normative to the evaluative sense and refer to the description of behavior and outcomes as positive, descriptive, predictive, or empirical.