Being overweight or obese increases your risk for diabetes. But if you already have diabetes, being overweight makes it harder to manage your diabetes, and increases your risk for high cholesterol, high blood pressure and cardiovascular disease (the major cause of death among people with diabetes).
Your body is made up of water, fat, protein, carbohydrates and various vitamins and minerals. If you have too much fat — especially in your waist area — you're at higher risk for high blood pressure, high blood cholesterol, diabetes, heart disease and stroke.
Waist circumference measurement and body mass index (BMI) are the recommended ways to estimate body fat. A high-risk waistline is more than 35 inches for women, more than 40 inches for men.
The body mass index formula assesses body weight relative to height. It's an indirect measure of body composition, because in most people it correlates highly with body fat. Weight in kilograms is divided by height in meters squared (kg/m2). Or multiply weight in pounds by 703, divide by height in inches, then divide again by height in inches.
Locate your weight and height to find your BMI »
In studies by the National Center for Health Statistics:
Underweight is defined as a body mass index (BMI) of
less than 18.5
Normal is defined as a BMI from
18.5 to 24.9
Overweight is defined as a BMI of
25.0 to 29.9
Obesity is defined as a BMI of
30.0 or greater or
about 30 pounds or more overweight
Extreme obesity is defined as a BMI of
40 or greater
The first step is to talk to your doctor. Based on your health and current abilities, they will recommend modest lifestyle changes related to diet and physical activity. Physical activity is an important part of losing weight. It also improves insulin sensitivity and glycemic control. The amount of activity you begin with is up to you and your doctor, but the duration and frequency should generally increase to at least 30 to 45 minutes of moderate aerobic activity at least three to five times a week, or more. Greater levels may be required to achieve long-term weight loss. For heart-healthy meals, visit
Eating Smart for a Healthy Heart for information and recipes co-developed by The Heart Hospital chef and dietitians.
Physicians are members of the medical staff at one of Baylor Health Care System's subsidiary, community or affiliated medical centers and are neither employees nor agents of those medical centers, Baylor Scott & White The Heart Hospital – Plano or Baylor Health Care System.