The idea's unfortunately been picked up by the fringier side of the discussion, but there's evidence that some proteins in wheat (not just gluten) trigger opia

The idea's unfortunately been picked up by the fringier side of the discussion, but there's evidence that some proteins in wheat (not just gluten) trigger opiate receptors in the brain. - http://www.ncbi.nlm.nih.gov/pubmed/1309704 http://www.ncbi.nlm.nih.gov/pubmed/1309704 - http://www.ncbi.nlm.nih.gov/pubmed/6099562 http://www.ncbi.nlm.nih.gov/pubmed/6099562