So I've been taking Yohimbine and hydroxycut (caffeine pill) combined for about a week now, pretty strong stimulant combination, no way would I want to take 2 pills of hydroxycut (the "normal" dose) since I already get flushed and jittery from a single pill. I'm sweating just laying down in bed right now and combined with the intermittent fasting, I have very little desire to eat while still feeling awake and alert for the first couple hours of my work shift. I've mostly cut pop out of my diet (I had 2 all week), decided I didn't need the extra caffeine (the major reason I drink diet soda in the first place), and so I probably saved at least 10 bucks from the vending machine.