Blood Donation

[kavacado]

Tomorrow is the first time that I will be donating blood as a vegan, so obviously I won't be eating the free pizza and cookies that they provide. However, they won't let me leave without eating something, so I'm wondering what would be a good snack to bring. They have orange juice, which should be fine, but I know from experience that my body needs more than that.

Thanks!!

--I checked the memories but didn't find anything; if I missed it, please direct me there.