Which food has less impact on blood sugar?

ROMAINE LETTUCE, RANCH DRESSING (SOYBEAN OIL, BUTTERMILK [CULTURED PASTEURIZED SKIM MILK AND MILK, SODIUM CITRATE AND SALT], WATER, DISTILLED VINEGAR, HIGH FRUCTOSE CORN SYRUP, SALT, CONTAINS LESS THAN 2% OF EGG YOLKS, DEHYDRATED GARLIC, DEHYDRATED ONION, MONOSODIUM GLUTAMATE, POLYSORBATE 60, TORULA YEAST, SODIUM BENZOATE AND POTASSIUM SORBATE [TO PRESERVE FRESHNESS], XANTHAN GUM, DEHYDRATED SWEET CREAM [CREAM, SOY LECITHIN], SPICE, LACTIC ACID, DEHYDRATED PARSLEY, PHOSPHORIC ACID, DISODIUM INOSINATE & DISODIUM GUANYLATE, CALCIUM DISODIUM EDTA ADDED TO PROTECT FLAVOR), GRAPE TOMATOES, CUCUMBER, CROUTONS (ENRICHED FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], CANOLA AND/OR SUNFLOWER OIL, WHEY, SALT, YEAST, 2% OR LESS OF HIGH FRUCTOSE CORN SYRUP, DEHYDRATED PARSLEY, GARLIC POWDER, CALCIUM PROPIONATE [PRESERVATIVE], NATURAL AND ARTIFICIAL FLAVOR, PARMESAN CHEESE AND ENZYME MODIFIED CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES], CULTURED NONFAT MILK, ANNATTO [COLOR], EXTRACTIVES OF TURMERIC AND PAPRIKA [COLOR], ENZYMES, ASCORBIC ACID, TBHQ [TO PRESERVE FRESHNESS]), CARROT.