Lil Keed died of natural causes due to eosinophilia, a condition characterized by an unusually high number of eosinophils, which are a type of disease- fighting white blood cell. The exact cause of the eosinophilia in his case was not determined, but the condition can be linked to parasitic infections, allergic reactions, or cancer. He had been sick for several days with stomach and back pains before suffering a seizure on the way to the hospital, where he was pronounced dead at age 24. His family confirmed no drugs or alcohol were found in his system at the time of death.