Donating blood and plasma

Can people with diabetes or even on medication for thyroid problems donate blood or plasma?I use to donate blood in my late teens and I’m not sure if I can still do that.Can it be done?

It depends on the meds that you are on. I used to be able to do it and they filtered out my meds to use the blood. Now, they tell me the number of meds that I am on for a variety of things makes it tough…Call your blood bank and ask, that would be the best answer.