Many people believe that our body will go to a starvation mode when one is following a strict diet during a longer period of time. This, due to strict diets that cause the body to go in starvation mode to consume less energy than normal. This starvation mode is frequently called the cause of the well known yo-yo effect. For the existence of the starvation mode is no scientific evidence.
Someone who lose weight, lose pounds which consist of both fat and muscle tissue. Fat and muscle tissue consume an amount of energy every day. This means that a person who has lost weight, by definition, will consume less calories because there is less fat and less muscle tissue to feed. At a level of activity that is approximately constant, less energy is required. A person weighing 200 pounds will consume more calories by walking than someone weighing 150 pounds. Simply because many pounds do not to have to be towed along.
So if you continue to eat as many calories, but lost 20 pounds in the meantime, weight loss will be slower and eventually stagnate. The body requires a certain amount of energy. When you lose weight, the body needs less energy. If you continue to eat the same number of calories, you will lose weight slower, and eventually you won't lose any weight. It's not a starvation mode of the body, the body burns fewer calories simply because there is less body to feed. When you think you have reached this point and you are not losing weight anymore, calculate your BMR again and start eating less.
In conclusion, there is no scientific evidence for the existence of the starvation mode. This mode can however, be explained very easily.
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