Some people don't digest gluten well and this can cause an array of problems. The problems can range from mild and intermittent to life threatening...from an allergy to gluten to Celiac Disease. I am using the term "sensitivity" to address the wide spectrum.
A person who has a gluten sensitivity has difficulty digesting the protein in gluten. This problem occurs in the intestines and causes the immune system to kick in, and this results in inflammation. This inflammation varies from person to person and can occur in joints, but also can affect the gut and other body systems. If your joint pain is caused by a gluten sensitivity, reducing or eliminating gluten in your diet can bring amazing results.
Gluten occurs in many common grains and their derivatives, including bread, pasta, many processed foods and even beer! See here for gluten and gluten-free foods.
Anecdotally, I have met people who have had all or most of their arthritis joint pain go away after they eliminated gluten from their diet. Scientifically, the medical arena is starting to pay more attention to this problem. One study showed a gluten-free vegan diet improves the signs and symptoms of rheumatoid arthritis. (1)
If you have joint pain and want to explore a medicine-free solution, look into the possibility of gluten being the culprit. A good place to start on the internet, I think, is this article on WebMD. There are organizations, websites, cookbooks and cooking classes catering to the gluten sensitive population. Also, be sure to talk to a medical professional if you get serious about exploring a gluten sensitivity. There are many causes of joint pain, of course, but a thorough search for the root cause just may keep you off medicine and pain free!
(1) published by National Institutes of Health at this link.
photo credit: Julie Kertesz at Wikimedia Commons with this license