Which food has less impact on blood sugar?

BBQ RANCH DRESSING (NONFAT BUTTERMILK [WHEY, WATER, SKIM MILK POWDER, CORN STARCH, TAPIOCA STARCH, CARRAGEENAN, LOCUST BEAN GUM, CULTURE], CANOLA OIL, TOMATO PASTE, SUGAR, WATER, DISTILLED VINEGAR, KETCHUP [TOMATO CONCENTRATE, DISTILLED VINEGAR, SUGAR, SALT, DRIED ONION, SPICE, NATURAL FAVOR], SALT, EGG YOLK, BROWN SUGAR, MOLASSES, NATURAL FLAVOR, PAPRIKA, SPICES, MUSTARD FLOUR, XANTHAN GUM, MODIFIED CORN STARCH, DRIED GARLIC, DRIED ONION, LEMON JUICE CONCENTRATE, PAPRIKA AND TURMERIC EXTRACTS [COLOR]), ROMAINE LETTUCE, GREEN LEAF LETTUCE, CHICKEN BREAST MEAT WITH RIB MEAT (CHICKEN BREAST MEAT WITH RIB MEAT, WATER, CULTURED SUGAR AND VINEGAR, POTATO STARCH, SEA SALT, NATURAL FLAVORINGS), SHARP CHEDDAR CHEESE (CHEDDAR CHEESE [PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES, ANNATTO {VEGETABLE COLOR}], POTATO STARCH AND POWDERED CELLULOSE [TO PREVENT CAKING], NATAMYCIN [A NATURAL MOLD INHIBITOR]), CRISPY ONIONS (ONIONS, PURE VEGETABLE OIL [CONTAINS ONE OF THE FOLLOWING: PALM OIL, SAFFLOWER OIL, OR SUNFLOWER OIL], WHEAT FLOUR, SALT), ROASTED CORN, RED ONION, BLACK BEANS (BLACK BEANS, WATER, SALT, FERROUS GLUCONATE), CARROT, RED CABBAGE.