Which food has less impact on blood sugar?

ROMAINE LETTUCE, CHICKEN BREAST WITH RIB MEAT (CHICKEN BREAST WITH RIB MEAT, WATER, SODIUM LACTATE, SEASONING [SALT, SUGAR, ARTIFICIAL CHICKEN FLAVOR {WITH HYDROLYZED CORN PROTEIN, AUTOLYZED YEAST EXTRACT, THIAMINE HYDROCHLORIDE, DISODIUM INOSINATE, DISODIUM GUANYLATE}, DEXTROSE, NATURAL FLAVORINGS], MODIFIED POTATO STARCH, DEXTROSE, POTASSIUM LACTATE, SODIUM PHOSPHATE, SODIUM DIACETATE), LIGHT CAESAR DRESSING (WATER, SOYBEAN OIL, PARMESAN CHEESE [PASTEURIZED PART SKIM MILK, CHEESE CULTURES, SALT, ENZYMES], DISTILLED VINEGAR, ENZYME MODIFIED ROMANO CHEESE [ROMANO CHEESE {CULTURED MILK, SALT, ENZYMES}, FLAVOR {ENZYME MODIFIED ROMANO CHEESE: CULTURED MILK, WATER, SALT, ENZYMES}, SALT], EGG YOLKS, SALT, CORN SYRUP, CONTAINS LESS THAN 2% OF: LEMON JUICE CONCENTRATE, SUGAR, DEHYDRATED GARLIC, SPICES, XANTHAN GUM, POLYSORBATE 60, DEHYDRATED ONION, SODIUM BENZOATE AND POTASSIUM SORBATE [AS PRESERVATIVES], MOLASSES, ANCHOVY, LACTIC ACID, NATURAL FLAVORS, DEFATTED SOY FLOUR, CARAMEL COLOR, CALCIUM DISODIUM EDTA ADDED TO PROTECT FLAVOR, TAMARIND), PARMESAN STYLE CHEESE (PASTEURIZED PART SKIM MILK, SALT, CHEESE CULTURE, ENZYMES, POTATO STARCH AND POWDERED CELLULOSE TO PREVENT CAKING, NATAMYCIN [A NATURAL MOLD INHIBITOR]).