Which food has less impact on blood sugar?

ROMAINE LETTUCE, BEEF STRIPS CARAMEL COLOR ADDED (BEEF, WATER, SOY SAUCE [WATER, WHEAT, SOYBEANS, SALT, AND LESS THAN 1/10 TH OF 1% SODIUM BENZOATE AS A PRESERVATIVE], LESS THAN 2%: MODIFIED FOOD STARCH, SOY PROTEIN CONCENTRATE, SODIUM LACTATE, CARAMEL COLOR, GRANULATED GARLIC), 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, BLUE CHEESE CRUMBLES (BLUE CHEESE [MILK, CHEESE CULTURES, SALT, ENZYMES], POWDERED CELLULOSE TO PREVENT CAKING, NATAMYCIN TO PROTECT FLAVOR), RED ONION, CRISPY ONIONS (ONIONS, ENRICHED FLOUR [WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], SUNFLOWER, SAFFLOWER AND/OR CANOLA OIL, SALT).