Which food has less impact on blood sugar?

ICEBERG LETTUCE, RANCH DRESSING (VEGETABLE OIL [CANOLA AND/OR SOYBEAN OIL], NONFAT BUTTERMILK [WHEY, WATER, SKIM MILK POWDER, CORN STARCH, TAPIOCA STARCH, CARRAGEENAN, LOCUST BEAN GUM, CULTURE], WATER, MALTODEXTRIN, WHITE WINE VINEGAR, EGG YOLK, SUGAR, LESS THAN 2% OF BUTTERMILK POWDER, SALT, DISTILLED VINEGAR, SEASONING BLEND [SALT, MALTODEXTRIN, MODIFIED CORN STARCH, DRIED ONION, DRIED GARLIC, AUTOLYZED YEAST EXTRACT, NATURAL FLAVOR, SPICE, PARSLEY, GUAR GUM], SEASONING BLEND [DEXTROSE, SALT, NATURAL FLAVORS, MODIFIED CORN STARCH], SODIUM CITRATE, XANTHAN GUM, BUTTER [CREAM, SALT], DRIED GARLIC, DRIED ONION, SPICES, GROUND MUSTARD, NATURAL FLAVOR), SMOKED TURKEY BREAST (CURED WITH: WATER, CONTAINS 2% OR LESS OF SALT, DEXTROSE, MODIFIED CORN STARCH, SODIUM LACTATE, SODIUM PHOSPHATE, CARRAGEENAN, NATURAL FLAVORING, SODIUM DIACETATE, NATURAL MESQUITE SMOKE FLAVOR, ASCORBIC ACID, SODIUM NITRITE, CITRIC ACID), SMOKED HAM WATER ADDED - A PORTION OF GROUND HAM ADDED (CURED WITH WATER, SUGAR, CONTAINS 2% OR LESS OF SALT, SODIUM LACTATE, SODIUM PHOSPHATES, FLAVORING, SODIUM DIACETATE, SODIUM ERYTHORBATE, SODIUM NITRITE), SWISS CHEESE (SWISS CHEESE [PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES], POTATO STARCH AND POWDERED CELLULOSE [TO PREVENT CAKING], NATAMYCIN [MOLD INHIBITOR]), CARROTS.