<p>This is my theory. It wasn't just the drink that made the zombies. On the final episode of season 2 a group of people were allowing utomium (or lucky u) into their system along with Max Rager. Throughout the entire show people have been drinking Max Rager without becoming a zombie. People also sniffed utopium without turning into a zombie. My theory is that since Max Rager makes people hyperactive there may be a chemical inside of the drink that gives the brain lots of energy. I also believe that there's a chemical that causes utopium to infect the brain making it sick and eventually die off. How does it keep the body alive though? Another part of my theory is that it kills off parts of the brain that keeps the human body thinking and functioning, but the chemical still keeps the legs, arms, etc. moving. Liv however needs brains because of the chemicals in the brains that keep the body and mind functioning. She still has her personality along with people's brain she eats.
</p><p>I'm sorry this is a long theory lol and no I'm not an expert or scientist lol.
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