Losing Fat...

1. By doing aerobics you lose muscles too, but by doing them right you can control the ratio of fat to muscles to some extent. If you don't do anything foolish, your overall muscles loss will be almost negligible.
2. Avoiding carbs/fat to a limit is ok, but if you try to overdo it you will only get weak and promote your body to conserve/store as much as it gets.
3. You just can't avoid fat gain up while bodybuilding (natural).

Fat is nothing more than energy stored for later use. When you eat carbs, your body breaks it down to glucose. Some of it is converted to energy for immediate use, some is stored in liver as glycogen for later use and the remaining gets stored as fat under skin your middle, thighs etc. So, it is the extra calories you ate some time ago. Another source of cellulite is ofcourse fat itself. Fat provides almost double energy than carbs and almost always gets stored as cellulite (never as glucogen). Cellulite /fat is supposed to be a steady source of energy, ie, it is supposed to provide energy for daily routine tasks which require small amount of energy for long duration. Examples are walking, light aerobics, swimming etc.

Dieting. Well, the most wrong and silly interpretation of dieting is starving yourself. You'll NEVER get anywhere by starving yourself. First of all always take your daily quota of vitamins, minerals, essential fatty acids etc. Dieting often leads to dark circles. This is mostly because of starving your body of vitamins etc. Remember that these are the things that your body can't produce by itself, you MUST take them REGULARLY. Secondly, avoiding carbs/fats altogether will not be good for your health. Get a calorie chart and learn how much calories you should be taking daily. Then schedule your diet accordingly. You may decide to take lesser calories (not too less) than required and this gives good results too. But remember that if you starve your body of energy, it will only encourage/force it to store as much as it can whenever it gets some. What I suggest is visiting your doctor and getting a diet routine done by expert hands. If you don't want to, then ofcourse the easiest way is to learn to recognize your gut feelings or instincts to know when you are done. If you are of my type, you'll know when you've got your quota of calories. As a general rule, start your meal by salads, vegs and fruits. This will ensure that you eat enough of vitamins and minerals. Then get to carbs and stop eating when you get the feeling that you are not hungry anymore. Avoid saturated fats and take the unsaturated ones as required. This will do.

Exercise. Once you get the idea that doing anything will burn fat, it'll become lot more easier to get rid of it. Just try to do things manually. Don't be a lazy bum, walk to market, throw the remote and go to the TV to change channels, don't use a pipe to water the plants rather use a small bucket, try to do whatever you possibly can while standing (try it on tv and you'll save much of the wasted time!!). Jogging for losing weight doesn't mean running hard for 2 minutes three times a week weightlifting won't burn much of fat. As I said before, you burn fat when you do something that requires small amount of energy and what you can continue without too much fatiguing for half an hour or so. When you do something that requires bursts of large amount of energy for short durations, muscles come to picture. So by sprinting or weightlifting you basically use up your muscles rather than fat. So, jog only as fast as what will get you slightly puffing and sweating and continue it for ATLEAST 20 minutes (this applies to any other similar exercise). This will ensure that you lose minimal of the hard earned muscles and maximal of fat. Also, you needn't do lots of crunches to get a flat tummy as crunches basically use more of your muscles and less of fat. So, no amount of crunches/situps/raises etc will burn as much fat as aerobics in the right way will do. How much to do (frequency)it part is slightly tricky. Studies show that doing aerobics thrice a week works almost as good as doing them daily. But I personally think that doing them daily ensures continuity and gives good results. So, in my cutting-up routines I do aerobics daily before my regular isolation exercises. For people suffering from blood-pressure, diabetes etc its good too (I've seen many and heard of countless people who controlled their disease by doing aerobics regularly), but they MUST consult a doctor for having the most effective routine. I suggest this for normal people too as it helps you stay on the safe side. My suggestion is, do aerobics for about 30-45 minutes daily. Stretching although no directly associated to fat lose but I suggest doing stretching too daily. Don't think you are fit enough until you can touch your toes (standing) and keep at it for at least 1 minute (in yoga this is considered very effective for achieving a flat belly and good back). Before concluding, I must tell you that no amount of ab training will remove the fat so don't be misguided by ads for any equipment that gives you crunches like workout. As to pills, throw them to dustbin, most of them only remove the water stored (opp to creatine) to give the effect that you lost fat. About those fancy belts I recently came to know through Dr. Ankur Agarwal that after some months of use, they produce spontaneous twitch and thats why they'll soon be withdrawn from market. So, take my advice and stick to natural exercises.