This is Paul Fassa, the one who wrote this article.
Thanks for trying to link the source of your correction, but I was blocked from access to that site. Don't know why really - seems like my computer or internet service considered it a dangerous site. So as yet, I can't say thanks for the correction. Do you have a safer source?
I go by the sources that are available to me. I'm not a biochemist or biologist. If those sources miss the mark, so do I. I usually cross reference sources against other articles or studies. Maybe this time I didn't do enough.Then again, maybe there was a typo.
Regarding the "omission", none of the sources I had used mentioned anything about FDA approval. The idea of this article was to point out how a starchy carbohydrate food could become helpful as a prebiotic. I don't think FDA approval or disapproval would matter to most HIN readers. It certainly doesn't matter to me.