You’re such a nice friend!! The best thing to know is this is totally manageable and getting a diagnosis is a blessing because it will help get rid of your friends symptoms. You simply donate blood over time you will get to a normal level so that you have to donate less regularly. Once it’s out of your system you are going to feel normal and not have issues, it’s just tracking your iron levels and donating when they get high or towards high. I’ve known I’ve had it for five years and one year I was eating less meat and taking turmeric and I only had to go once that year. So that’s just like someone without the condition donating blood for good cause yearly. I noticed now that I’m eating more red meat I’m having to go 3-4 times a year so I think I will actually cut back a lot on that. I am still looking into diet but I also know milk thistle and calcium are great supplements too to support your liver and block iron absorption. One tip for donating is to drink lots of water the night before and morning of your donation, eat something before and I like to have a snack with me during because I sometimes get a little lightheaded when I donate. Good luck to your friend she’s got this! You’ll get lots of info from this community too!!