Losing weight "too quickly" is never a good idea. In my experience losing it gradually is healthier. Losing 1lb a week is a safe goal to have. In 25-30 weeks you have lost all the weight that you desire to lose and you will have gained knowledge of how to do it. There are no quick fix weight loss tricks that work.

I agree with earlyriser. Slow and steady is the way to go.
I believe in lifestyle changes, not diets.
For 1 lb a week, I heard just eat a few hundred calories less a day. We should not go under 1200 or the metabolism slows down. We want to lose fat, not muscle.
I would also like to lose at least 20 lbs, which I got this way from overeating. So I am having smaller portions. This is the way to go. It didn't come on overnight, so we can lose it in 1 day......

Both of the other members are correct. The best thing to do is to begin by tracking your calories. You would be surprised to know how many calories a day one eats. I suggest trying a free web-site called sparkpeople,com. It is very user friendly and informative. As for exercise I suggest Leslie Sansome Walking Videos. You public library will have some for you to try for free. They are low impact and start off easily. I too have asthma and heart condition and I was able to slowly build my ability to exercise. So, I know you can too! Finally, understand there is no magic formula or pill. Like all things you must do the work to get the results you desire.

Hi. The only way to lose body mass is to burn more than you consume. You do not want to go under 1200 calories per day or else your muscles will atrophy. A good way to burn fat quickly is to put your body into ketosis so it goes straight to burning body fat, so bypass or decrease sugar and refined carbohydrate intake in your diet. Take a fiber supplement. Maybe take some nutritional supplements as well, but the best way to get your vitamins, minerals, enzymes, etc. is from fresh fruits and vegetables. You can start your day with a brisk walk to jump start your metabolism for the rest of the day. Weight lifting also dramatically revs up the metabolism, even while you sleep, so get in some weight lifting. Stretch and detox too so flush out the toxins that are adding harmful weight to your body. There are detox diets you could look into, but don't do it for too long because your body does need to hold onto some minerals and vitamins to be healthy so you don't want to just flush them all out. You might also look into taking a probiotic supplement. If you don't have a heart condition, you could also take a metabolic stimulant supplement such as green tea, cinnamon, CLA (conjugated linoleic acid), or some other brands of diet pills. Be careful about diet pills with stimulants in them though because they can make people nervous or too hyper and change their personalities a little bit. That's why I suggested the more natural ones first. Also, eat small, frequent meals throughout the day and have your biggest meal be earlier in the day, not at night. Don't eat to the point of feeling full. Diet suggestions: for protein, choose fish and combine it with lightly steamed or raw vegetables. Try not to exceed 104 degrees on the steaming because then the live enzymes in the vegetables disappear, and you want to keep the live enzymes for digestive support, plus they're good for overall health and beauty. Fat/Protein + green vegetables is a good food combination. Eat carbohydrates alone, and don't mix them with fats or proteins. Eat fruit alone, and preferably for breakfast or a snack, and wait two or three hours before you eat any other foo otherwise it can cause gastric bloating. Avoid chemical additives, sugar except from fruits, avoid starchy foods such as potatoes, and definitely avoid fried foods, processed foods and flour. If you must have rice, eat brown or black rice instead. I know oyou said that when your heart rate goes up, you get asthma, but when you increase your oxygen intake it helps your metabolism as well, even through deep breathing instead of exercising, but use your discretion with that. There is a danger of hyperventilation, so do it wisely. Good luck!

Not just green vegetables. Yellow and red ones are very good, too. You might want to avoid carrots and beets because they're more sugary (at least while you're on a diet. I love carrots, though. The vitamin A is good for your health and beauty).

Anyway, also I've heard that taking about a teaspoon of apple cider vinegar with 8 oz. of water is good to balance your pH levels and helps with weight loss, too.