While it can be argued in many cases that the symptoms are associated with autism, it is sometimes helpful to know that a child is both autistic and, for example, diagnosable with ADHD, learning disabilities, hyperlexia, Savant Syndrome, or another disorder
One example is indole-3-propionic acid (IPA), which is one of the iodole derivatives produced by the gut bacteria during tryptophan catabolism
Gotoh and Mori 2006)
Polyunsaturated fatty acids, lipid peroxidation and antioxidant protection in avian semen review
This will ensure that the structure of the peptides remains sound
Another key is to eliminate commonly inflammatory foods such as dairy, soy, or gluten