How much weight can I lose by fasting for 72 hours? In fact, research shows that you may lose up to 2 pounds (0.9 kg) each day of a 24- to 72-hour water fast ( 7 ). Unfortunately, a lot of the weight you lose may come from water, carbs, and even muscle mass.
Will I lose weight if I stop eating for 3 days? You will likely lose weight on any diet if you eat less than 910 calories a day. But losing 10 pounds in 3 days is both unlikely and unhealthy. To lose just 1 pound of body fat, you need to reduce your daily calories by about 500 a day for a whole week. That’s giving up 3,500 calories over the course of 7 days.
How much weight do you lose after fasting for three days? It Will Not Lead To Fat Loss
Longer fasts (more than a week to almost a month) could lead to an average of 0.9 kgs weight loss per day in the beginning and about 0.3 kgs by the third week (13). But again, this weight loss is most likely due to loss of water weight and loss of muscle mass.
How often can you do a 72 hour fast? However, if overdone, it can lead to many other complications. Only practice 48-72 hours fasting once a month or once every two months. Do not go without food very often, or it can lead to severe vitamin and mineral deficiencies.