Proportion of fast-food items that contained salt substitutes/enhancers (n = 191), by food category and type of salt substitute/enhancer. Yeast extracts and hydrolyzed vegetable proteins "often contain MSG" according to the Strategies to Reduce Sodium Intake in the United States report published by the Institute of Medicine.12 The following categories were not included in this figure because their sample size was less than 10: hot dogs (n = 2), sushi (n = 1) kids' meals (n = 3), fries (n = 4), poutine (n = 1), salad entrées (n = 5), soup (n = 9) and other side dishes (n = 6). Note: MSG = monosodium glutamate.