A normal body weight is important. It protects against diseases such as high blood pressure or cardiovascular diseases. In order to be able to classify one's own body weight, the so-called Body Mass Index (BMI). It is calculated as follows:

BMI = body weight divided by height in meters squared.

A BMI below 18.5 means too little weight. This can indicate anorexia. A BMI between 20 and 25 is called normal weight, a BMI between 25 and 30 is called slightly overweight. A BMI over 30 is called severe overweight, which is also referred to as obesity.

On the website of the Swiss Society for Nutrition you will find a Body Mass Index Calculator and various nutritional tests.

The website Eating Disorders Expert Network offers an overview on the topic of eating disorders.

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