A Fraser Valley naturopath who charged families thousands of dollars to give their autistic children pills and enemas made from human feces has agreed to give up his licence, after more than four years of investigations and legal battles.

Jason Klop has claimed "dramatic improvements" in the autism symptoms of children as young as two that he's treated with fecal microbiota transplants at clinics in Mexico, Hungary, Australia and Panama, at a cost of about $15,000 US.

Klop has now admitted that his business violated multiple standards and regulations of his profession, according to a public notice posted online by the College of Naturopathic Physicians of B.C.

Under the terms of the consent order, Klop has admitted to promoting and selling fecal microbiota transplants (FMT) for autistic patients in defiance of Health Canada rules and the scope of practice for B.C. naturopaths. The notice says he continued to do this work even after being warned he was breaking the rules.

He's also admitted to making "unverifiable statements" in his advertising, and allowing Canadians to have intermittent access to his website, despite promising they would have none.

Doctors and scientists have warned that any other use of this emerging therapy is experimental and carries serious risk of infection, while people with autism have denounced Klop's procedure as an unproven treatment that puts vulnerable children in danger.