It varies from person to person, feeling hungry and thin. It is troublesome to drink this. I've tried it, and if it's expensive, it's just the rhythm of gaining weight, but this product has no side effects. You can't eat enough only once a day, and you can't drink and stay up late. The weight loss effect is good, but it will rebound. I watched my friend lose weight with my own eyes and gain weight after a year without eating. I hope it helps you.