Psychological and behavioral effects of genetic risk testing for obesity: a systematic review.

Background: Interest is growing in the use of genetic risk testing for lifestyle-related chronic diseases, including obesity, to promote health behavior change.

Objective: A systematic review of the literature was conducted to determine the effects that genetic risk feedback for obesity may have on psychological and behavioral factors influencing weight.

Methods: The MEDLINE/PubMed online database was searched using predefined search terms.