Condiments are not automatically unhealthy, but many bottled sauces and dressings add a lot of sodium, added sugar, or fat in small servings. Mayo Clinic advises going easy on soy sauce, salad dressings, ketchup, mustard, relish, and similar toppings because they contribute sodium; one tablespoon of soy sauce can have more than 800 milligrams.
Harvard-affiliated nutrition experts likewise warn that commercial barbecue sauces and salad dressings can pack substantial sugar and salt, and they suggest simpler toppers such as oil and vinegar or salsa when you want flavor with fewer extras. Used in modest amounts and chosen with the Nutrition Facts label in mind, most condiments can still fit a healthy diet.