Thanks Yeddi! That's the sort of stuff our ND does too. The more I read about all this gut health- mental health relationship I really think there is something in it too. My instincts just feel it's a path we have to explore. I've only watched the first clip so far- interestingly I BF E till he was 2 and he was developing well until then. I had wondered about a link there and she explained it really well. E went into decline from his 2nd birthday. We didn't get a speech assessment till he was 2 years 9 months because we kept wondering if it was a just a little set back given how well he had been going up until 2. He continued to get worse and worse that year though. He has been on a GFCF diet for about 2 months now and his language and behaviour keeps improving all the time.