What are your CBC lvls? Keep us posted with your experiment! In my case metformin didnt help at all. RBC, hemoglobin and hemocrit slowly rises above range for me in a matter of 3-4 months. Nothing crazy though... just slightly above range. I have been on TRT (injections) for 1 year.
Last time I donated blood and added 1 grapefruit a day so lets see.
I would be ok to donate blood every 3 months but i have white coat syndrome and it is always a pain in the s.... when it is time to donate blood. So i am trying to avoid this with the grapefruit. Lets see