Honestly I couldn't give a shit if there were horrible effects. Kidnapping someone off the street and throwing them in a padded room with a doctor over watching to make sure they're medically OK is perfectly safe, but ought to be illegal. Buying rat poison and eating it is completely unsafe, but if that's someone's thing then they're free to have at it.
Of course, if I buy rat poison, I have a pretty pure product and I can look up the ld50 and make a scientific estimate on how much I can take before I die. Not so with some random shit off the street.