The trick that one Crohn's sufferer I know uses is to take an ounce of weed and cook it in a pressure-cooker into a half gallon or so of goat's milk (it is gentler and she is intolerant of casein). Every time she has a meal, she puts a good sized spoonful of this in her food or just drinks it so that the anti-inflammatory effect of the THC can soothe her system as she digests her meal. She has so far been able to keep weight on and avoid the horrible surgeries that have been forced on Crohn's sufferers as 'the only way'...