I recently read an interview with Temple Grandin where she said that she is not a vegetarian because without animal protein she will get hypoglycemic. I'd never heard about this before. I know that if you aren't eating meat it's important to get your protein from a variety of sources but I've never heard of someone truly needing protein from an animal source to maintain their health. So last night I was hanging out with a friend that is somewhat of a flexatarian and she said that during the last few months that she's gone back to being vegetarian she has been getting very weak, lightheaded, dizzy, etc. She decided to eat some meat and has been doing so for the last few days and says she feels fine now. She doesn't want to eat meat and I suggested that she monitor her protein intake more closely and gave her several protein dense vegetarian options. Both of these situations have made me wonder though, have you ever heard of someone that absolutely just had to eat meat?