EXCLUSION CRITERIA:
Please do NOT complete the study if any of the following weight-impacting conditions apply to you: (1) drink, on average, more than 1 alcoholic beverage/day for women or more than 2 alcoholic beverages/day for men; (2) smoke tobacco; (3) are a substance abuser; (4) are pregnant; (5) have an eating disorder, diabetes, chronic obstructive pulmonary disease, gastrointestinal problems, or serious psychiatric illness; (6) are taking psychiatric medication or medication for a thyroid condition; or (7) are being treated for kidney disease. Finally, please do not complete the study if you have not maintained your current weight for the past five years.