But losing 10 pounds in 3 days is both unlikely and unhealthy. Truuburn Keto Reviews To lose just 1 pound of body fat, you need to reduce your daily calories by about 500 a day for a whole week. Truuburn Keto That’s giving up 3,500 calories over the course of 7 days. To lose 10 pounds in 3 days would mean decreasing your calorie intake by 35,000 calories in just 3 days! The Academy of...