Been doing it for years. I started after being recommended a book by Dr. John Mansfield, a specialist in arthritis and allergies. A man way before his time.
Michael Mosley then investigated gut health and then I read another brilliant book by Tim Spaector called The Diet Myth. It really explains the links between the gut and the brain.
Not a fancy diet nipsmum, more just a healthy way of eating.
NHS U turn on trans terminology