A Texas man is asking a court to force his ex-wife to consent to a controversial autism treatment for their son.

Mario Martinez says chelation treatments are helping 7-year-old William overcome behavior and learning challenges stemming from the boy’s autism diagnosis.

The treatments involve the use of chemicals to rid the body of metals like lead and mercury.

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William already receives chelation in suppository form, but his father wants the boy to begin more intensive intravenous treatments. Juli Martinez, William’s mom, says the suppository treatments have sickened her son and IV treatments are too dangerous.

Chelation is not scientifically proven to help people with autism and many doctors consider the treatment ineffective and dangerous.

Now the former spouses are in court seeking to resolve the matter, reports the Austin American-Statesman. To read more click here.