In short, you need a diet high in proteins and low in fats and sugars, an extreme example can be found here…

You also need to do aerobics, ideally at the times when the glycogen inside your muscles are at their lowest level, after a work out with weight, or early in the morning before breakfast.

You also need to work out with weights, since muscles consume much more energy than fat, and keeping your muscles in shape will accelerate the fat loss and weight loss process.

When only a diet is taken, with no exercises or weight training to support that diet, our bodies will eventually adapt to their lower energy intake by transforming muscle into fat and lowering our metabolism, so that it is much more likely to regain weight as soon as the diet is stopped.

Finally deep massages are required to deal with problems like cellulitis, on top of all of the above.