<<Disclaimer: Verify this information before applying it to your situation.>> Hi All, Since going on a GF diet 5 weeks ago, my improvement has been definitely noticable. However, I still have extreme muscle tightness and weakness, especially in my legs, after I try to do some exercies (in this case, fast walking). I started out in 1990 with lots of digestive problems and aching muscles (I was a competitive cyclist), and eventualy was unable to even walk. Now that I can walk again, I want to start pushing a bit. However, I tried over the weekend and today I'm paying for it. I have a few questions for you experts out there, if I may: Question: Assuming I have had 7 years of intestinal damage from eating wheat, oats, etc., how long can I expect before the intestinal lining has completely healed? One more: If I was going to be deficient in some vitamin/mineral because of this problem, what would it likely be? I am taking Magnesium and a sub-lingual mult-vitamin in the morning, and Calcium and another multi vitamin in the evening. If I am missing something, is there a valid test that can be done? Blood tests on me don't seem to show anything out of order. Thanks for any advice you can give. ejh