What is the calculation method of body mass index?

The calculation formula of height and body mass index (BMI) is: BMI = weight (kg) divided by the square of height (m).

The standard adult weight is BMI 18.5-23.9. A standard widely used in the world to measure the degree of fatness and thinness of human body and whether it is healthy or not. British scientists conducted as many as 57 surveys on 900,000 adults. The results show that people with a body mass index over 40 tend to live about 10 years less than "healthy people" with an index between 22.5 and 25.

Weight control:

Weight control programs can use four therapies: diet and nutrition counseling, behavioral therapy, drugs and surgery. Nowadays, traditional dietotherapy is rarely used; Instead, it emphasizes changing long-term habits. Most programs teach customers how to eat safely, wisely and step by step.

Changes include increasing the intake of complex carbohydrates (fruits, vegetables, bread, cereal products and pasta products) and reducing the intake of fat and simple carbohydrates. A very low-energy diet of 400~800kcal per day is not so popular, because it is obvious that patients can regain their weight quickly.