What combination of diet/exercise should i follow if i want to lose fifteen pounds?

See below.: I find that following a low-glycemic load diet (eating foods that do not rapidly raise blood sugar), doing 30 to 45 minutes of interval training twice a week and resistance training to tone muscles. The diet will help to not gain more fat and promote burning the fat you have. The interval training will increase your fat burning for hours after you've stopped and toned muscles burn more calories/hr.

What to do:: Eat healthfully. Try to eat at least 5 servings of vegetables & 4 of fruit per day. Increase nutritional fiber. Avoid refined sugar & junk carbohydrates. Avoid alcohol, sweetened juices, soda & caffeinated beverages. Aim for 7.5 to 8 hrs of sleep / night. Hydrate w at least 64 oz of water / day. Calories burned must > calories consumed. Do both cardio & weight training.