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Holmes is a vegan because avoiding animal products allows her to function on less sleep.

Just gonna drop that one in there? I'd love to see evidence of this. (As a happy non-vegan, I kind of hope it's not true.)

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http://www.ncbi.nlm.nih.gov/pubmed/10943644

- via (http://www.huffingtonpost.com/anjali-sareen/vegan-benefits_b...)

- via (https://www.google.com/search?hl=en&q=vegans+require+less+sl...)

Thanks for the reference. Hard to tell if veganism is the cause, though. For example, lots of paleo people consume "living foods," including fermented vegetables. Do they see similar benefits? I'd wager yes. Plus, the study doesn't substantiate the claim of vegans needing less sleep. It points to a better "quality of sleep," with no indication of quantity, and even then only in fibromyalgic subjects. So it appears that my initial skepticism was justified.

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