Im 16/6'4/right around 250. Im in pretty good health. 2 weeks ago I got this fitness/diet book and mon-fri is exercise, and everday I have to eat low processed whole/raw foods. Low wheat/yeast bread stuff. It's mainly low-cal,low sat.fat,high-fiber,high unsat.fat,sort of high protein,and i think regular carbs. Each day of exercise is something different so thats good. I need to lose like 25-30 lbs. I stopped drinking sodas. No more chips and quesos. Smoothie every morning with protein nutrient mix, 2 table spoon flaxseedoil, fruits. But like i said those nutrient drinks are packed with sugar, and somedays I do have a lot of those. Will too much sugar disrupt the weight loss?