i've seen improvements within 4 days of being gluten free...
the best story i tell is of golf lady in 2009. when i met her she was limping badly. when asked what was wrong, she told me "3 yrs ago, i backed up, landed on my knee and felt like i twisted it. i have been to specialists and doctors and no one can find what is wrong with my knee. i have been taking advil for 3 yrs. without advil, i cannot walk, and if i cannot walk, i cannot do my job."

so when i discussed how gluten inflames the joints, and this could be her problem, she laughed at me and said, "honey, everything i eat has gluten in it."
by the end of the night and me sticking to her like glue, she agreed to go gluten free for a week. it bugged me because she said she'd been hurting for 3 yrs.
i gave her my number and told her to keep in touch.. thinking she would forget this evening and our conversation.

sure enough... on the morning of day 4, she texted me and said, "first morning without advil." at the end of the day, she texted me and said, "never took an advil. first time in 3 yrs."

that was in 2009. she has lost 50 pounds, never went back to gluten and is now a pro golfer in Miami...

4 days..
i have lots of stories like these.. i've been rounding them up for a book or something...