Which food has less impact on blood sugar?

ROMAINE LETTUCE, BBQ RANCH DRESSING (WATER, BUTTERMILK [CULTURED PASTEURIZED SKIM MILK AND MILK, SODIUM CITRATE AND SALT], SOYBEAN OIL, TOMATO PASTE, SUGAR, DISTILLED VINEGAR, SALT, CONTAINS LESS THAN 2% OF (MOLASSES, NATURAL FLAVORS, EGG YOLKS, MUSTARD BRAN, SPICES, XANTHAN GUM, SODIUM BENZOATE AND POTASSIUM SORBATE [AS PRESERVATIVES], DEHYDRATED GARLIC, DEHYDRATED PARSLEY, DEHYDRATED ONION, CITRIC ACID, LACTIC ACID, CORN SYRUP, DISODIUM INOSINATE & DISODIUM GUANYLATE, AUTOLYZED YEAST EXTRACT, CARAMEL COLOR, CALCIUM DISODIUM EDTA ADDED TO PROTECT FLAVOR, CELERY SEED, TAMARIND)), SEASONED SHREDDED PORK, CARAMEL COLOR ADDED (PORK, PORK STOCK, LESS THAN 2% LEMON JUICE CONCENTRATE, VINEGAR, CHILI PEPPER, SALT, YEAST EXTRACT, NATURAL FLAVORS [INCLUDING SUNFLOWER OIL], SPICE, GUM ARABIC, CARAMEL COLOR), COLLARD GREENS, GREEN BELL PEPPER, RED BELL PEPPER, COTIJA CHEESE (CULTURED PASTEURIZED GRADE A MILK AND SKIM MILK, SEA SALT, AND ENZYMES), ROASTED CORN, BLACK BEANS (BLACK BEANS, WATER, SALT, FERROUS GLUCONATE).