Which food has less impact on blood sugar?

ROMAINE LETTUCE, GRAPE TOMATOES, CREAMY AVOCADO DRESSING (SOYBEAN OIL AND/OR CANOLA OIL, WATER, GUACAMOLE [AVOCADOS, DEHYDRATED ONION, WHITE VINEGAR, SALT, GRANULATED GARLIC], CILANTRO, WHITE WINE VINEGAR, PEPITA SEEDS, EGG YOLK, SUGAR, CONTAINS LESS THAN 2% OF: DEHYDRATED RED BELL PEPPER, GARLIC, LACTIC ACID, LIME JUICE CONCENTRATE, NATURAL FLAVORS, SALT, SPICES [CONTAINS MUSTARD], XANTHAN GUM), OVEN ROASTED CHICKEN BREAST MEAT WITH RIB MEAT (CHICKEN BREAST MEAT WITH RIB MEAT, WATER, LESS THAN 2% RICE STARCH, LEMON JUICE CONCENTRATE, VINEGAR, SALT, SUGAR, YEAST EXTRACT, NATURAL FLAVORS), MONTEREY JACK-COLBY CHEESE (MONTEREY JACK CHEESE [PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES], COLBY CHEESE [PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES, ANNATTO {VEGETABLE COLOR}], POWDERED CELLULOSE [TO PREVENT CAKING], NATAMYCIN [MOLD INHIBITOR]), BACON (CURED WITH WATER, SALT, SODIUM PHOSPHATES, SODIUM ERYTHORBATE, SODIUM NITRITE, MAY ALSO CONTAIN: SUGAR, BROWN SUGAR, AND NATURAL SMOKE FLAVOR).