User blog comment:Legionwrex/Why Destroy is the worst ending (besides refusal)./@comment-1440333-20130314123258/@comment-3130611-20130314214530

I believe it was EDI who asserted that Shepard was fully human. I think she mentioned it after Sur'Kesh or something; it was when she mentioned her discussion with Mordin about transhumans. She at first said "that would be telling" to Shepard, but she then said that Shepard was fully human, as his mind functions on its own.