Tim i'd advocate Gerard's approach of apple fast then a period with some rice as a sound one too.
As i've said, it'd be interesting to know what your body does with nutrients, fats and bile....
Another thing, starch is multiple glucose. I wonder how you do on elementary sugars - glucose of course, but mannose and glucosamine are used directly by cells, they do not need a glucose stage! There is some evidence that fucose may be similar so the only difficulty is suitable sources and quantities.
I found this recent apple fast extremely enervating - got back into running the next day after an eight week break and established that all my residual pain is osteo damage. Hope it does similar for you.
Ted
