That depends on the method. There are many strange methods on the internet that don't work, and many of them achieve the purpose of losing weight temporarily by destroying physical fitness.

The first point is that food can be reduced, but at first it should be controlled within the reduction of 10%. Don't say I'm going to lose weight tomorrow, then I won't eat tomorrow.

Unless there is a long-term malnutrition diet, it will rebound quickly.

This is because the increase of cortisol secretion caused by hunger will also make the body enter a state of self-help, both of which will accumulate fat to maintain energy.

The second concept is to reduce fat

The two most widespread rumors should be aerobic exercise for 30 minutes to lose weight and strength training to lose weight.

Aerobic depends on intensity. If it's like walking and jogging, I won't object, but if it's like rope sprinting, not to mention 30 minutes, 3 minutes is enough.

The function of strength training is to strengthen muscle lines, but only to assist.

For example, some people accumulate fat in the abdomen but only do flat support, which is ineffective. If you don't believe it, you can refer to heavyweight weightlifters such as Hall. His exercise intensity is high, but his body fat is also high.

What should be done is to pay attention to the diet and living habits that are mainly aerobic and supplemented by anaerobic.