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Best Answer: O positive ok for transfusing to all positive types. O negative is a unversal to all types. So you cannot donate blood for an O negative if you are O positive. If you just want to donate plasma then you can donate, just not whole blood.
The vegetables that are beneficial for people with type O blood are spinach, broccoli, kale, romaine lettuce and collard greens as they are rich in vitamin K. Vegetables like leeks, onions, garlic, artichokes, pumpkins and parsley can also be included with an o positive blood type diet.