Lets take the lower end of this goal to lose 40 pounds in 3 months...
To do this, you'd have to lose .44 pounds/day or 3 pounds/week.
Now usually when attempting to lose weight, you should be aiming for 1-2 pounds/week, so to go for 3 pounds/week, is not too off that mark, and will still be possible, even easy if you have a lot of weight on you to lose.
To start...take your weight in lbs, and multiply it by 15...whatever number you get, that is what you need to eat in calories in order to maintain your current weight.
Start eating 500 calories below this number to lose at a rate of 1 pound a week (a 3,500 calorie deficit = 1 pound lost).
You could also add 1 hour of cardio/day to burn another 500 calories each hour...this would give you another pound of loss each week.
To get that last pound, you could simply cut your calories down a bit further....so maintain a 1,000 calorie deficit instead.
21-Minute Method, You CAN Eat Carbs, Enjoy Your Favorite Foods, and STILL Burn Away A Bit Of Belly Fat Each and Every Day
This method of body weight workouts for women and men include do sit ups burn fat is one of the most effective fat burning exercises.
Most people who have shed pounds know you need to exercise to consume fat, remain fit as a fiddle, decrease pressure, wipe out wellbeing dangers, and get the body you want…
What not very many individuals acknowledge is that you might practice excessively...
Also, that short exercises of around 21 minutes have been deductively demonstrated to give all of you the advantages of longer exercises — without the negative symptoms you'll find out about in one moment
For more details; Bodyweight - Fat Burning Exercises- Best Fat Burning Exercises
Video description: Click here!!