The weight around 20 years old is used as a reference for slimming; If you are not an obese person since childhood or adolescence; Generally 20 years old, the height and body shape are basically fixed; Development has been basically completed; So the weight of this age can be used as the base; Weight gain on this basis can be regarded as fat gain. Obese middle-aged and elderly people can refer to their own weight around the age of 20 as the overall goal or call it personal "ideal weight".
For obese people with complications, the slimming goals are different; Such as obese people with diabetes and hypertension; It is more appropriate to control the weight below the standard weight 10%.