Arachidonic acid is a polyunsaturated omega-6 fatty acid 20:4.
It can be inflammatory if you eat too much of it, especially if you are not getting enough omega-3 fatty acids.
AA is in a lot of foods, and I don't avoid it, but by cutting out the two most intensive sources of AA in my diet (fowl and egg yolks) the pain is gone.
I eat cheese, peanuts, beef (mostly grass fed as corn fed beef has a much higher omega 6 to omega 3 ratio), and other AA foods, and it doesn't bother me. But chicken and egg yolks make me overdose on AA (also with my wife), the pain/stiffness come back, and elimination makes the pain go away again.
Other than bacon, I eat my meats mostly lean and avoid too much of the fat.
Organ meats are high in AA as well, but I never liked them so that's not a problem for me.
Excerpts from
http://www.livestrong.com/article/3...achidonic-acid/
In the 2005-2006 National Health and Nutrition Examination Survey, or NHANES, chicken and chicken-mixed dishes contributed the most to arachidonic acid intake in America. A 1-cup serving of a roasted chicken broiler contains 0.154 gram of arachidonic acid. Duck contains the highest level of arachidonic acid among lean meats, according to a study conducted on dietary arachidonic acid among meat fat.
One large hard-boiled egg contains 0.074 gram of arachidonic acid. Eggs were found to be the second largest contributor to arachidonic intake among American, according to NHANES.
While beef and beef products are the third top contributor of arachidonic acid to the American diet, according to NHANES, they contain lower levels of arachidonic acid when compared to white meats. Dark meats including beef and lamb are higher in omega-3 fatty acids but still contain arachidonic acid. A 3-ounce serving of beef roast contains 0.042 gram of arachidonic acid.
From:
http://farmhousebeef.com/beef-cuts/...on-information/Grass-fed beef has the recommended ratio of omega 6 to omega 3 fats (3:1.)
Grain fed beef can have an omega 6:3 ratio higher than 20:1
So far, everyone I shared the arthritis/bursitis diet with has had miraculous improvements.
My DW recommended it to a friend of hers who had knee replacement surgery recommended by two doctors. Six months later she is completely pain free and still has her biological knees.
That is a blessing, because she is in her late 50s, and when the artificial knees need replacing (they all eventually do) she won't be able to recover from the surgery as well because of her aged body.
Bob