Which food has less impact on blood sugar?

RANCH DRESSING (CANOLA OIL, LOW FAT BUTTERMILK [SKIM MILK, WHEY, WATER, SKIM MILK SOLIDS, WHEY SOLIDS, CORN STARCH, TAPIOCA STARCH, DISODIUM PHOSPHATE {PRESERVATIVES}, CARRAGEENAN GUM, LOCUST BEAN GUM, CULTURE], WATER, EGG YOLK, SUGAR, CIDER VINEGAR, ONION, SALT, DISTILLED VINEGAR, GREEN ONIONS, XANTHAN GUM, GUAR GUM, SPICE, MUSTARD FLOUR), ROMAINE LETTUCE, GREEN LEAF LETTUCE, HARD COOKED EGG (EGGS, WATER, CITRIC ACID, SODIUM BENZOATE), GRAPE TOMATOES, TAVERN HAM (CURED WITH WATER, SALT, SUGAR, DEXTROSE, CONTAINS LESS THAN 2% SODIUM PHOSPHATE, SODIUM ERYTHORBATE, SODIUM NITRITE), MAPLE GLAZED HONEY COATED CURED TURKEY BREAST (CURED WITH WATER, SALT, SUGAR, DEXTROSE, HONEY, PURE MAPLE SYRUP, SODIUM PHOSPHATE, SODIUM ERYTHORBATE, SODIUM NITRITE. COATED WITH HONEY, WATER, MAPLE SUGAR & SUGAR, CARAMEL COLOR, FLAVORINGS, GELATIN), CARROT, RED CABBAGE, CROUTONS (ENRICHED FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], CANOLA OIL, WHEY, SALT, YEAST, 2% OR LESS OF THE FOLLOWING: HIGH FRUCTOSE CORN SYRUP, WHEAT GLUTEN, DEHYDRATED PARSLEY, GARLIC POWDER, NATURAL AND ARTIFICIAL FLAVOR, PARMESAN CHEESE AND ENZYME MODIFIED CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES], CULTURED NONFAT MILK, CALCIUM PROPIONATE [PRESERVATIVE], CALCIUM PEROXIDE, CALCIUM SULFATE, ASCORBIC ACID, AZODICARBONAMIDE, SODIUM STEAROYL LACTYLATE, COLORS [ANNATTO, PAPRIKA, EXTRACTIVES OF TURMERIC], TBHQ [TO PRESERVE FRESHNESS]), SWISS CHEESE (PASTEURIZED PART-SKIM MILK, CHEESE CULTURES, SALT, ENZYMES), CHEDDAR CHEESE (PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES, ANNATTO [VEGETABLE COLOR], IF COLORED), RADICCHIO.