Women are needed for a study examining how naturally occurring bacteria in the gut may impact weight loss. Participation involves eating study-provided meals for 4 weeks, completing questionnaires, providing basic body measurements, and providing stool and occasional blood samples. Meals are provided at no cost and additional compensation is available. Eligible participants must be generally healthy African American or Caucasian women, age 30-50, currently overweight, and not currently pregnant or nursing. For more information contact the FEED ME Study at 205-934-1715.