When you combine a low carbohydrate diet or ketogenic diet with interval training you will be losing body fat rapidly!
First, look at the image here of my daugther, who is holding 5 pounds of fat. Losing body fat in this quantity can be done quickly and safely and that's what I'm going to walk you through.
Let's start with why you would want to move towards a low carbohydrate or ketogenic diet. So, what is a ketogenic diet? Well, Wikipedia defines it as;
"The ketogenic diet is a high-fat, adequate-protein, low-carbohydrate diet that in medicine is used primarily to treat difficult-to-control (refractory) epilepsy