Losing 40 pounds in one month is highly unlikely for most individuals. Most healthy diet plans result in 30-day losses of about 10 pounds -or 20 pounds under strict regimens.
Losing just 1 pound of body fat requires a deficit of 3500 calories, meaning 1,000 calories must be dropped each day to lose 2 pounds in a single week.
Weight loss is attainable through decreasing the amount of calories consumed daily and/or increasing the amount of calories burned during workouts. Tracking calorie intake through a daily food journal or fitness application is the key to success for many successful dieters, cite health and fitness experts at shape.com.