Diet, if there were any special health foods that would help I think the "Docs" would have said. I certainly did not get any advice on it.
As for collecting the Stem Cells my first attempt was a dismal failure. I then had to wait about 6 months for a second go. I put my failure down to a mess up on the CSG(?) injections on the last night. Just make sure you do them right if you are self administering them.
all the very best of luck
Kindest regards – Vasbyte
David