I think I remember something about 'cracks' in the tongue surface on the Ask Shelley forum...or her new site.
And, perhaps Squarecurls means Shirley's Wellness Cafe.
Castor Oil could very well be useful for this purpose...it does a lot of other good things.
I'm working on fresh-ground flax seeds, with cottage cheese, and hemp seed 'nuts' (hearts?), for the original source Omega 3 oils, with soft-cooked eggs, for the lecithin. And kelp, for the Iodine and Vitamin C...and so on.