Spaghetti Sauce Settles It in Food Intolerance & Leaky Gut Posted November 6, 2007 · Report to Admin After eating gluten-free rice noodles last night with the most delicious tomato sauce on the planet and getting sick, I was confused as ever. Sick? Over spaghetti? I looked at the ingredients of the tomato sauce. Sure enough: soybean oil. I guess the dilemma over whether it's soy that makes me sick in addition to casein is solved, but I just want to cry. I feel like there's so many things I can't eat that it's just ridculous. I'm really depressed and frustrated. But *hopefully* if I go soy-, dairy- and gluten-free, I'll feel better. I just hope.