My husband had the same swollen feet with soy. He is better now after avoiding all food with soy including chicken (chicken feed has soy) and food with SOY LECITHIN such as bread, desserts, chocolate,etc.
Hi,
Food Intolerance is any adverse reaction to food. This does not exclude the possibility of immune reactions being involved in some way.
Food intolerance can cause aching joints in some people. Normally, the most heavily used joints, such as the knees, that are afflicted first, but it may later spread to other joints.
Studies have found that some patients respond positively to an elimination diet.
Rheumatoid arthritis – is characterized by painful, swollen joints that feel warm on the touch and are often stiff.
The idea that food intolerance can play an important part in causing rheumatoid arthritis is not widely defended among rheumatologists.
Some patients, however, lost their symptoms entirely on an elimination diet. How food intolerance might influence the inflammation in joints is still unknown.
In your case it is best that you make a consious choice in the foods you eat, the symptoms are prevented best by total avoidance of the food.
ref:http://www.fruitarian.com/ac/Foodallergy.htm