A Well done on deciding to tackle your weight problem. As I’m sure you already know, half the battle is making the decision to lose weight. Now you’ve done that, you’re already well on the way to achieving your goal.

As you have a lot of weight to lose, I suggest you set yourself mini goals, for example, 1/2 stone at a time – achieving these smaller goals will help to keep you motivated. In the meantime, there’s plenty you can do to help reduce the chances of being left with excess loose skin.

You’re right when you say exercise will help prevent sagging skin after weight loss. While you might find it difficult right now, as the weight starts to come off, you’ll gradually feel more energetic and find it easier to exercise. For best results you should combine fat-burning aerobic activity to help shift the pounds with toning exercises to help the muscles shape up.

Once your doctor has given you the all clear to start exercising, I suggest you start by trying to walk as much as you can. As you lose weight and begin to feel fitter, aim to increase the distance and speed at which you walk. Once walking becomes easy, start to introduce a mixture of other aerobic activities such as swimming, cycling, jogging or classes, and toning activities such as light weights.

While fitness experts used to believe that sit ups were the best way to get a flat stomach, they now know you’ll get better results if you work all the muscles in your stomach, sides and back – the core muscles – rather than just the one that helps you bend! Pilates is a fantastic workout for toning these core muscles, as are stability balls which you can buy from good sports shops or over the internet.

Finally, you might like to use a body-firming cream each day to help keep your skin supple and smooth. Good luck!

To find out how many calories you are burning each day, and how many you are eating - you can try the tools and databases in Weight Loss Resources, free for 24 hours. Start free trial