If the coconut flour passes the iodine test and my very starch sensitive hubby can eat it then I say it's "starch free"
I've only heard of a handful of people that cant handle it and these are people who seem to have a lot of other issues going on eg having to go to extremes with diet much more than just NSD no sugar, fruit etc etc. Some suspected it may be the natural sugar content of the coconut flour that caused them the trouble.
All the best
