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If you're overweight or obese, losing weight can reduce your risk of some potentially serious health problems.
Most people who need to lose weight can get health benefits from losing even a small amount – about 5% – of their weight if they keep it off.
If you're overweight or obese, you have a higher risk of:
You can find out if you're overweight by calculating your body mass index (BMI). This shows whether you're a healthy weight for your height.
The size of your waist is also important. If it's too large, your risk of health problems is higher.
The best way to lose weight is to make small, realistic changes to your diet and how physically active you are.
The amount of physical activity you should do depends on your age. For example, adults between the ages of 19 and 64 should do 150 minutes a week of moderate-intensity physical activity. Find out more about the physical activity guidelines.
Read more about eating a balanced diet.
Important: Our website provides useful information but is not a substitute for medical advice. You should always seek the advice of your doctor when making decisions about your health.