Oscillations of Dietary Fat/Carbohydrate Intake Over Interval of 3 to 4 Days

Inclusion Criteria: * You are a dietitian or a senior level or graduate level dietetics student * You are between the ages of 21-55 years inclusive and a nonsmoker * you are not a restrictive diet or strenuous exercise regimen * You typically eat several meals per day Exclusion Criteria: * You have an eating disorder or history * You abuse alcohol or other substances, and consume no more than 3 alcoholic drinks per day * You have no current regular use of some over-the-counter medication or prescription medication, excluding headache medicines, blood pressure medications, etc. * You have gained/lost more than 10 pounds of body weight in the last year * You have recently had or anticipating significant life changes during the course of your participation in the study. * You have an eating disorder or history * You have a major psychiatric illness or history * You have no serious current clinical disease or surgical condition that may interfere with the study.