MSG is found in a variety of foods, sometimes listed under different names so as not to scare off customers: names such as yeast extract, hydrolyzed vegetable protein, whey protein, autolyzed yeast, and yeast food. It’s most commonly found in soups, flavorings, and sauces. But the effects of MSG cannot be hidden. It’s been linked to obesity, vision problems, migraines, and even ADHD and cancer.