Overweight refers to an excess of body weight compared to set standards. The excess weight may come from muscle, bone, fat, and/or body water. Obesity refers specifically to having an abnormally high proportion of body fat.  A person can be overweight without being obese (for example, a bodybuilder or other athlete who has a lot of muscle). However, many people who are overweight are also obese.

Some common conditions related to overweight and obesity include:

• Premature death
• Cardiovascular disease
• High blood pressure
• Osteoarthritis
• Some cancers
• Diabetes