Industrial sludge adds to the potent brew of essential ingredients. Virus, pus, bacteria. Heart worms, filaria. Slaughterhouses have employees whose job it is to fill bins with creatures who lodge in internal organs, destroying from within. Anybody with a dog knows that heartworm medicine is essential.
Humans get heartworms too.
The best medicine is prevention. One gram of prevention is worth a kilo of cure. Ben's future will not include ice cream.