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I dont know where to get any cheap protein bars. Youre light, so dot get any low carb bars. Get bar with carbs in them but make sure to watch where the carbs come from. If tehre is more than 10 grams of sugar i one bar then do not get it because it is too much sugar. Just remember one thing, dont go to GNC, t hey are a rip off. Try and go to ebay, they have cases on sale for pretty cheap.