Lots of people do not understand that our body possesses it's very own anti-inflammatory chemical substances that it uses to control inflammation. This self contained process that the body uses to reduce inflammation is sustained by an essential nutrient-- omega 3 fatty acid . (Many medical doctors seem to have forgotten this simple fact). If omega 3's are deficient in the diet, which is the case for all third world people then the body will not have the raw material that it needs to get to produce it's very own anti-inflammatory compounds. As a result inflammed joints remain inflammed and very painful. But when you provide these important omega 3 fatty acids by taking a fish oil nutritional supplement, the body commences producing it's very own anti-inflammatory chemicals anew and the joint pain and inflammation resolve.
http://www.youtube.com/watch?v=Bv2c7XxaNa0
http://www.wat.tv/video/12550277