For best results you should choose or make up your own plan involving both diet and exercise. Any worthwhile program will require some self-monitoring, by keeping some notes, or a food diary. Many people who attempt to lose weight by exercise eat more to overcome increased hunger, thus burning off calories in the gym, then putting them all back on again at the next meal. Keeping a food diary, just a few simple notes about what and how much you eat, will help you to keep a check on the incoming calories so they don't overtake the outgoings.
The healthy ways to lose weight, for most people, will mean changing to healthy diets. Burgers and cream buns are out, except as a very occasional, sinful treat, as are sweets and chocolates, and too many between meal snacks. You need to eat something, however, so look for low fat, and low sugar alternatives. In the early days of low fat, sugar free food and drinks, there was the definite, not to pleasant taste of the artificial sweeteners used in most of them. Today, very few people would notice any difference at all. So you can still enjoy your fizzy drinks without the spoonful of sugar.
Do not skip meals, particularly breakfast; - it sets your metabolism up for the day. Eat slowly so that you will get the full up feeling before you have over-gorged yourself. Drink plenty of water; - eight glasses a day is recommended, the fizzy drinks mentioned above are not ideal, and should be reserved as "treats". Keep a tight watch on those between meal "naughties"
Exercise doesn't need to be grueling or intense, so don't overstep the mark. If you lead a sedentary lifestyle to begin with, then a 20 to 30 minute brisk walk will do wonders for you, improving your health and fitness until you are ready to take on a heavier routine. Freestanding exercise at home will be sufficient for many people with an otherwise busy lifestyle, and at virtually no cost. Gyms are more expensive, but if you can afford gym membership you will find that the whole idea of a break from the normal routine, and "going to the gym" will avoid the boredom which can come about just standing in your lounge, twisting and waving your arms around.
Follow these simple guidelines for healthy ways to lose weight, and your new, slimmer waistline will come sooner that you think.