Unintentional weight gain is an increase in body weight that occurs when a person takes in more calories than the body needs or uses.
Almost 40% of all Americans are
Weight gain can also be a significant symptom of several
A continued weight gain occurs with pregnancy, whereas a periodic weight gain may occur with menstruation. A rapid weight gain may be a sign of dangerous fluid retention.
- Certain drugs such as corticosteroids, cyproheptadine, lithium, tranquilizers, phenothiazines, some antidepressants, and medicines that increase fluid retention and cause
- Cushing syndrome
- Eating too much and exercising too little
- Emotional factors such as guilt,
depression, and anxiety
- High-carbohydrate, high-calorie diet
- Polycystic ovary syndrome
- Slower metabolism, which is normal with aging
- Quitting smoking
Review Date: 10/18/2009
Reviewed By: David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc., and Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine.