Common foods that contain MSG
MSG is naturally present in many different foods, especially those that are high in protein. It’s also added to ingredients and other foods during processing (1Trusted Source, 4Trusted Source).

Common foods that contain MSG are (1Trusted Source, 6Trusted Source, 14, 15):

Animal-based protein: chicken, beef, salmon, mackerel, scallops, crab, shrimp
Cheese: Parmesan, Emmenthal, cheddar, Roquefort
Vegetables: tomatoes, onions, cabbage, green peas, spinach, mushrooms, broccoli
Processed meats: pepperoni, bacon, pastrami, sausages, salami
Sauces and dressings: soy sauce, ketchup, mustard, mayonnaise, barbecue sauce, salad dressings
Premade and packaged foods: canned soups, canned tuna, frozen meals, crackers, potato chips, flavored snacks
Condiments: seasoning blends, rubs
Additionally, fast-food chains like McDonald’s, Chick-fill-A, and KFC use MSG to season menu items like fried chicken, chicken nuggets, and fries (16, 17, 18).

https://www.healthline.com/nutrition/msg-good-or-bad#what-it-is