Pesticide/herbicide exposure is also plausible, either via direct mechanisms or by disruption of gut microbiota (e.g. glyphosate and the shikimate pathway). It

Pesticide/herbicide exposure is also plausible, either via direct mechanisms or by disruption of gut microbiota (e.g. glyphosate and the shikimate pathway). It seems likely that these and other factors could interact, too.