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, ANCHOVIES, LACTIC ACID, NATURAL FLAVORS, DEFATTED SOY FLOUR, CARAMEL COLOR, CALCIUM DISODIUM EDTA [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]).