If your BMI is below 18.5, it means you are underweight. This means that you have a lower-than-average amount of body fat. Being underweight can put you at risk for health problems such as weak bones, anemia, and problems with your immune system. If you are underweight, talk to your doctor about ways to gain weight safely.

The 18.5-24.9 BMI range is considered to be normal weight. This range of BMI is associated with a reduced risk of developing chronic health conditions, such as heart disease, stroke, and type 2 diabetes.

A healthy weight also helps to reduce the strain on joints and bones and can improve overall energy levels and mood. To maintain a healthy weight, eating a balanced diet and getting regular exercise are essential.

Being overweight increases your risk of developing health problems such as heart disease, stroke, and type 2 diabetes. If your BMI is between 25.0 and 29.9, you are considered overweight.

A healthy weight also helps to reduce the strain on joints and bones and can improve overall energy levels and mood. To maintain a healthy weight, eating a balanced diet and getting regular exercise are essential.

Obesity class 1 has a BMI of 30.0-34.9. This is considered a moderate level of obesity and is associated with an increased risk of developing obesity-related health conditions.

Obesity class 1 is often treated with lifestyle changes, such as diet and exercise, and sometimes with weight-loss medications.

Obesity class II is characterized by a BMI of 35.0-39.9. This level of obesity is associated with significant health risks, including high blood pressure, high cholesterol, type 2 diabetes, and sleep apnea.

Obesity class II patients are also at increased risk for heart disease, stroke, and certain types of cancer. Treatment for obesity class II typically includes lifestyle changes, such as diet and exercise, as well as weight loss medication. Surgery may also be an option for some patients.

If you are obese and your BMI is over 40, you are considered to have obesity class III. This is the most severe form of obesity and can lead to several serious health problems.

Obesity class III is often associated with diabetes, high blood pressure, and sleep apnea. If you have obesity class III, you may be at risk of a heart attack or stroke.

You may also have difficulty breathing and need a wheelchair or scooter to get around. Treatment for obesity class III often includes weight loss surgery, such as gastric bypass surgery.

If you are obese and your BMI is over 40, you should talk to your doctor about your treatment options.