For example. A friend of mine, female, is less than 160CM and weighs 120 kg. I have two hobbies in my life, eating and sleeping, and always thinking about losing weight. I either can't keep my mouth shut or I can't walk. Later our classmates brought this from Canada. Not long after eating, I have to eat and sleep every day, and my weight has dropped by nearly 10 kg.

So ... if you can control yourself a little, the effect will not be too good.