Mouse model study [1]. Intriguing, but far from meriting behaviour changes. Meanwhile, your Huffington Post author cites a largely-discredited glyphosate study [2] in the middle of an anti-GMO rant [3]. (Wikipedia is generally more reliable than the Huffington Post.)
I believe that the popular opinion by many is that they do not have NCGS. TV personalities like Bourdain drive this heavily by discussing how gf used to not really be a thing in restaurants, but now is quite popular.
The more recent research -- by the people who originally studied NCGS -- is that the earlier studies may have been detecting sensitivity to other things, and that NCGS may not exist at all.
https://www.ncbi.nlm.nih.gov/pubmed/23253599
And not that Huff Post is a health go-to (but nor is Wikipedia):
https://m.huffpost.com/us/entry/1834836