Has anyone ever heard of this? I was listening to a podcast episode (the birth hour) the other day, and I think it was the episode with rebekah (sp?) minkoff. She had GD with her first 2 pregnancies, and not the third. Her father is a GP, and found some study from the mid 70's and had her supplement with a bioavailable form of B6 called P5P. I tried to find some recent research on this and came up empty handed. Has anyone heard of this Or been told this?