FWIW, I'm using the diet for chronic/intractable pain outlined in the back of Dr. Forest Tennant's
Intractable Pain Patient's Handbook For Survival.
http://pain-topics.org/pdf/IntractablePainSurvival.pdf (Pg 34)
It's protein/good fats based (at least 50%), but has improved my overall pain levels (when I stick to it) and it's the only diet I've been able to lose weight on (since chronic pain began).
Doc