Which food has less impact on blood sugar?

LETTUCE, GRILLED WHITE CHICKEN (CHICKEN BREAST WITH RIB MEAT, WATER, POTATO STARCH, SEA SALT), DRESSING (WATER, CANOLA OIL, PARMESAN CHEESE [MILK, CULTURE, SALT, ENZYMES], CIDER VINEGAR, SALT, ROMANO CHEESE [MILK, CULTURE, SALT, ENZYMES], LEMON JUICE CONCENTRATE, EGG YOLK, SUGAR, GARLIC, SPICES, WORCESTERSHIRE POWDER [VINEGAR, MOLASSES, CORN SYRUP, SALT, CARAMEL COLOR, GARLIC, SUCROSE, SPICES, TAMARIND, NATURAL FLAVOR, MALTODEXTRIN], CITRIC ACID, XANTHAN GUM, DRIED ONION, ANCHOVY POWDER [MALTODEXTRIN, ANCHOVY EXTRACT, SALT], CARAMEL COLOR, ANNATTO EXTRACT [COLOR], YEAST EXTRACT, NATURAL FLAVORS), PARMESAN CHEESE (PASTEURIZED PART SKIM MILK, CHEESE CULTURE, SALT, ENZYMES, FLOW AGENT: CELLULOSE POWDER ADDED TO PREVENT CAKING), SEASONED CROUTONS (UNBLEACHED ENRICHED FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMIN MONONITRATE, RIBOFLAVIN, AND FOLIC ACID], CANOLA AND/OR HIGH OLEIC SUNFLOWER OIL, WATER, DRIED CANE SYRUP, SALT, LESS THAN 2% OF WHEY, PARMESAN CHEESES [(PART-SKIM MILK, CHEESE CULTURE, SALT, ENZYMES), WHEY, BUTTERMILK SOLIDS, SODIUM PHOSPHATE, SALT], YEAST, NONFAT DRY MILK, DEXTROSE, ONION, GARLIC, NATURAL PARMESAN FLAVOR, SPICES, PARSLEY, AND LACTIC ACID. MAY CONTAIN ASCORBIC ACID AS DOUGH CONDITIONER).