Which food has less impact on blood sugar?

ROMAINE LETTUCE, CHICKEN BREAST (CHICKEN, WATER, SALT, CHICKEN BROTH POWDER, SAVORY CHICKEN SEASONING [SALT, NATURAL FLAVOR, SUNFLOWER LECITHIN], DEXTROSE), CAESAR DRESSING (CANOLA OIL, WATER, PARMESAN CHEESE [PART SKIM MILK, CULTURE, SALT, ENZYMES], EGG YOLK, DUON MUSTARD [DISTILLED VINEGAR, WATER, MUSTARD SEED, SALT, WHITE WINE, CITRIC ACID, TURMERIC, TARTARIC ACID, SPICES], DISTILLED VINEGAR, DRIED GARLIC, SALT, LEMON JUICE CONCENTRATE, SUGAR, ANCHOVIES, SPICE, XANTHAN GUM, MUSTARD FLOUR, MALTODEXTRIN, ANCHOVY EXTRACT), PARMESAN CHEESE (PASTEURIZED PART SKIMMED MILK, CHEESE CULTURE, SALT, ENZYMES), FRENCH STYLE GARLIC CROUTON (ENRICHED FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID] CANOLA OIL, YEAST HIGH FRUCTOSE CORN SYRUP, 2% OR LESS OF SALT, CORN SYRUP SOLIDS, DEHYDRATED GARLIC, CALCIUM PEROXIDE, CALCIUM SULFATE, ASCORBIC ACID, AZODICARBONAMIDE, ONION POWDER, WHEY, ROMANO CHEESE FROM COW'S MILK [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES], PARSLEY, MALTODEXTRIN, SPICES, NATURAL AND ARTIFICIAL FLAVOR [MILK], CITRIC ACID, DISODIUM INOSINATE, DISODIUM GUANYLATE, CALCIUM PROPIONATE [PRESERVATIVE], TBHQ [TO PRESERVE FRESHNESS]), PESTO BASIL SAUCE (CANOLA OIL, BASIL, FRESH PARMESAN CHEESE [PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES, POWDERED CELLULOSE (ANTI-CAKING AGENT)], FRESH GARLIC, WATER, RICE WINE VINEGAR [RICE WINE VINEGAR, WATER], SALT, BLACK PEPPER).