Foods to avoid: common ingredients with gluten A lot of the most common ingredients used in Japanese cuisine contain gluten. Some of the most common are: Wheat flour: used to make some common dishes like ramen,
chicken bouillon, and Top Ramen (in this case, hiding as "yeast extract"). If there ever were a fact to conclusively disprove "Chinese Restaurant Syndrome," it's that people are eating MSG all the time in a variety of foods.