Sauces are serial offenders. Barbeque, plum, honey garlic, hoisin, sweet and sour, and other dipping sauces contain large amounts of sugar. Spaghetti sauce may contain as much as 10 to 15 grams of sugar (3 to 4 teaspoons). This counters the tartness of the tomatoes, and therefore may not be immediately evident to your taste buds.
