The biggest part of Losing weight a lot of people will tell you is your diet, now in some cases its true but in a lot thats not necessarily the case. It all depends on the individual and what type of exercise they're doing. An example being one person who lifts weight with moderate intensity twice a week is going to have to monitor their diet a lot more than some who runs 5 miles 4 times a week and does light intensity weights every other day. The key to weight loss is burning calories and if someone tells you cardio doesnt help you get rid of belly fat theyre wrong. Getting you heart rate up is what burns calories, now ask yourself this what do you think will make your heart beat harder more consistently. Lifting weights for an hour at medium intensity? Or running for an hour at medium intensity? the answer is running because little do you know when you run your heart rate spikes way up and then levels out when you find your zone for running. With weight lifting your heart rate only spikes during the time you lift weights and then goes back to its resting stage when you arent lifting BUT that doesnt mean weight lifting doesnt help you lose weight. It does but differently when wanting to lose weight quickly I'll always recommend running or cardio based exercise over weights but weights help burn calories while youre resting too, its a slower process but after a weight session you continue to burn calories from your muscles being activated for 48 hours it still wont be as efficient as cardio but you can still lose weight lifting as well. The KEY in all of this is your consistency and how frequently you exercise and for how long, that determines how well you have to control your diet and how fast youll burn calories and lose weight.