Listen to your mum - dieting is faddish. Instead, improve the "quite" to "all" healthy and eat only nutritionally balanced, healthy foods. Cut out all sweets and junk foods, apart from an occasional treat, as humans would have always done till recent times. The exercise is important, and include plenty of stealth exercise, such as taking the stairs instead of the elevator and cycling to the shops instead of driving, etc.
Stubborn belly fat is something most of us deal with, and a fast solution to getting rid of it would be ideal. Unfortunately, there's no safe, quick fix to losing weight just in our bellies. That's because our bodies aren't able to simply spot reduce, which means doing a ton of crunches every day won't necessarily yield the results you're looking for in your midsection.
Consider high-intensity interval training. Adding shorter, high-intensity workouts to your routine has been shown to burn fat. While the endurance you gain from running is great, it's not particularly helpful when it comes to burning fat, especially the more your body adjusts to your routine. During a high-intensity workout, you can't work out nearly as long, but mixing it in with your regular cardio routine will help blast away fat.
Visceral fat—a type of fat that lies deep inside your abdomen and surrounds your internal organs—is linked to a whole slew of terrifying health problems like heart disease and type 2 diabetes, according to the Mayo Clinic. Even scarier: According to the National Heart, Lung, and Blood Institute (NHLBI), your risk of those health issues increases even more if your waist size is greater than 35 inches for women and 40 inches for men.