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20 days agoIf you are really really curious, you can find a phlebotomist that is game and use your own blood. This is the most ethical way to get some cooking blood and it can be done. (For proof see article)
https://www.vice.com/en/article/i-made-meringues-out-of-my-own-blood-and-ate-them/
This is exactly why on most phones you can turn this feature off, which is also good to know.