My girlfriend wants to eat her placenta. Is it okay if she's a vegan?

So my girlfriend is 32 weeks in and has decided that she wants to eat her placenta. I know it sounds gross and weird, but a lot of animals do it (even herbivores).

I'm just wondering if it is okay for her to eat since she is a vegan and it is meat.
Update: I swear its a real thing. Heres an article about it. http://www.parents.com/blogs/goodyblog/2011/08/eating-your-placenta-a-new-pregnancy-trend/
Update 2: It has been done before. I swear this is true lol! People have gone through with this, I just want to know if it would be right for a vegan to do this?
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