Zombie Blood Energy Potion

Yes, you read that correctly: Zombie Blood Energy Potion. "Zombie Blood as an energy drink?! No way!" you say. "Yes way!!" we respond! Not only has zombie blood been found to provide large amounts of energy to the average human body, it's got a delicious lime flavor to boot! "Okay, wait. If I drink this stuff, won't I become a zombie too?" Not at all! Zombie blood is 100% mutagenic virus-free, and completely safe (and AWESOME!) to drink. "Alright, fine. But where does all this Zombie Blood come from?" Well, zombies of course. Where did you expect it to come from, rainbows and lollipops?