<<Disclaimer: Verify this information before applying it to your situation.>>

Solgar (vitamins, nutritional supplements) has a Food Sensitivity
Guide on their website which lists their products which contain particular
foods.  There are separate lists
for products which contain gluten, soy, milk, etc.
The address is:
http://www.solgar.com/online_reference/food_sens/index.html

Amy in MA, USA