Quiz question:
What ingredient is common to all of the following foods?

KcKay's Chicken Style Instant Broth and Seasoning
Autolyzed Yeast

Spice Bouquet Adobo seasoning
Hydrolized Vegetable Protein

Lightlife Foods Smart Ground
Soy Protein Concentrate, Soy Sauce, Natural Flavors, Malt Extract,
Wheat Starch

Lightlife Foods Tofu Pups
Soy Protein Isolate, Yeast Extract, Carrageenan, Natural Smoke Flavor

Campbell's Healthy Request Cream of Mushroom
Modified Food Starch, Whey Protein Concentrate, Maltodextrin, Flavoring

Lawry's Tenderizing Beef Marinade Spices & Seasonings
Modified Food Starch, Natural Flavoring

Simply Organic Macaroni & Cheese
Natural Flavors, Organic Autolyzed yeast extract

Geno's All-In-One Sauce
Soy sauce, Worcestershire sauce (...hydrolyzed corn and soy
protein...), Natural flavoring, Modified food starch

Cardini's Herb Poppy Seed Dressing (Low Fat)
Maltodextrin, Modified Food Starch, Whey Protein Concentrate, Natural
Flavor

Simply Organic spicy chili
Organic Autolyzed Yeast Extract

Modern Products All Natural Vege-Sal All Purpose Vegetized Seasoning
Salt
Soy Sauce, Hydrolized Vegetable Protein

Hain Pure Foods All Natural Chicken Broth
Chicken Broth, Chicken Base, Autolyzed Yeast Extract

Campbell's Healthy Request Minestrone
Contains: Chicken stock, high fructose corn syrup, chicken flavor,
Disodium inosinate, Disodium guanylate, Flavoring

Blue Diamond Almond Toppers
Nonfat milk solids, Cheese cultures, Enzymes, Maltodextrin, Enzyme
modified parmesan cheese, Torula yeast, Natural flavor, Disodium
inosinate, Disodium guanylate

Farm House Parmesan Pasta (Distributed by General Mills Sales, Inc.)
Enzymes, Maltodextrin, Autolyzed yeast extract, Modified corn starch,
Natural flavor

Briannas Home Style Blue Cheese Dressing
Contains: Cheese culture, Enzymes, Vinegar, Buttermilk powder, Natural
flavor, Citric acid

Campbell's Healthy Request Cream of Mushroom
Contains: Modified food starch, Cornstarch, Whey protein concentrate,
Disodium inosinate, Disodium guanylate, Maltodextrin, Mushroom powder

Campbell's Healthy Request Chicken Broth
Contains: Chicken stock, Chicken flavor (dried chicken stock, gelatin,
flavoring) Flavoring, Disodium inosinate, Disodium guanylate

Campbell's Healthy Request Hearty Chicken Noodle
Contains: Chicken stock, Modified food starch, Maltodextrin, Disodium
inosinate, Disodium guanylate, Cultured whey, Modified food starch, Soy
protein isolate, Chicken flavor

Campbell's Healthy Request Hearty Tomato Ravioli with Vegetables
Contains: Carrageenan, Pasteurized part skim milk, Cheese cultures,
Enzymes, Modified food starch, Enzyme modified butter, Cream powder,
Nonfat dry milk, Disodium inosinate, Disodium guanylate

Dominique's New England Clam Chowder (Distributed by: American
marketing Team, Bloomfield, NJ)
Contains: Modified corn starch, Isolated soy protein, Clam broth
concentrate, Yeast extract, Natural flavor

Franco-American SPACE GOOFS shaped Pasta with MEATBALLS in Tomato Sauce
Contains: Soy protein isolate, Enzyme modified cheddar cheese, Enzyme
modified butter

Hain Pure Food All Natural Vegetable Broth
Contains: Autolyzed yeast extract

Herb ox very low sodium Instant Broth & Seasoning Chicken Bouillon with
other natural flavors
Contains: Maltodextrin, Monoammonian glutamate, Gelatin, Citric acid,
Natural flavoring, Disodium inosinate, Disodium guanylate

Newman's Own Ranch Dressing
Contains: Natural flavor, Yeast extract

Tony Charchere's Lite Creole Seasoning
Contains: Maltodextrin

For the answer, see:
http://www.truthinlabeling.org/nomsg.html