glutathione synthetase deficiency genereviews Synthase - an overview GLUTATHIONE SYNTHESIS - PMC

While there are many studies on this subject, there are two major studies that suggest acetaminophen is linked to autism

Simons CL, Malone D, Wang M , Maglinte GA, Inocencio T, Wade SW, Bennison C, Shah B

What earlier cohort syntheses suggested Before the Swedish sibling study, pooled European cohort work reported modest associations : prenatal acetaminophen exposure was linked to ~19% higher odds of autism-spectrum symptoms and ~21% higher odds of ADHD-type symptoms in childhood

F., Ferro-Novick, S., Rose, M

Many of the Chinese peptide shipments have COAs, or certificates of authenticity, from testing companies

Although the vitamin sounds like a single vitamin, there are in fact eight B vitamins that are more of less prevalent in different foodstuffs, and regularly added as fortification to breads and cereals, for example - thiamin (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), pyridoxine (B6), biotin (B7), folate/folacin or folic acid (B9) and cobalamins (B12)