What is the best diet to lose weight ( i want to weigh about 120-125)?

Weight loss: Hi, a low calorie diet with lower carbohydrate intake and higher Protein (not more than 30% of calorie intake) and fiber could help. Also 90-120 hours of cardio exercise is crucial, although I don't know anything about your current weight and height. You can use myfitnesspal app to track your diet and activity, also Atkin diet works very well.