I never used to be able to tolerate onions. Even a small amount in a salad would give me severe stomach pain, flatulence and nausea. Things are different now, because since I cleaned out my intestines and they are functioning properly again, onions are no longer a problem. I order the olives in this recipe from @Jurassicfruit, with my code Lena10 you also get 10% off your first order.