....theres a method I'd like to try to see if it would work, if it's anorexia due to choice or some sort of Psychological issue. Is he married, because if so this may kill him. Shock therapy, normally Anorexia, and Bulemia are stemmed from self confidence issues, dealing with body structure, however if you can entirely alter the world view in a quick shock I theorize it might snap someone out of it, positive trauma if you will, althought this has the flip chance of entirely lowering his confidence, and it may not work, I'll need to test it on some subjects first.
Welcome one and All to the Jesters Carnival, where the prizes are greater than your wildest dreams, but the nightmares here shall silence you before you can even scream.