grapes, I am also hypothyroid. I went pretty severely hypo about eight years ago thanks to a doctor who thought that an active thyroid hormone level 0.1 above the bottom of the range was "normal" and kept insisting I was eating too much and not exercising enough. I finally had to fire her and go to a naturopath to get straightened out. I have been on full thyroid replacement since then and have gotten all of my medical issues straightened out--but I am 20 pounds overweight and cannot get that weight to budge no matter what I do. I have been wheat-free and Paleo for almost three years now. We raise and preserve our own food (garden, chickens, and pigs). I have said many times to my naturopath that I ought to weight much less than I do given the way we eat. We have tried various things to no avail. (This is an issue for me because I NEVER in my life had a weight problem until I became hypo and gained 30 pounds.)
I love Paleo but I have really missed potatoes and beans and rice, so I am excited about trying RS. Yesterday was my first dose of potato starch. We'll see how it goes.