According to a study led by Albert Garcia-Romeu, Department of Psychiatry and Behavioral Sciences at Johns Hopkins University School of Medicine, there is no evidence that body weight impacted subjective effects of psilocybin. As part of the study, researchers examined the acute subjective drug effects (mystical, challenging, and intensity) of psilocybin, with body weight ranges between 108 to 249 pounds (49 to 113 kg), administering 20 to 30 mg/70 kg.