Which food has less impact on blood sugar?

LETTUCE, ROASTED TURKEY BREAST (TURKEY BREAST, WATER, CONTAINS LESS THAN 1.5% OF SALT, SUGAR, SODIUM PHOSPHATE AND DEXTROSE. COATED WITH: DEXTROSE, SEA SALT, HONEY SOLIDS (REFINERY SYRUP, HONEY), PAPRIKA, SPICES, ONION, 2% OR LESS OF NATURAL FLAVORS, EXTRACTIVES OF PAPRIKA AND TURMERIC), RANCH DRESSING (CANOLA OIL, NON FAT BUTTERMILK (WHEY, WATER, SKIM MILK POWDER, CORN STARCH, TAPIOCA STARCH, CARRAGEENAN, LOCUST BEAN GUM, CULTURE), WATER, EGG YOLK, NON FAT SOUR CREAM (CULTURED SKIM MILK, CORN STARCH, TAPIOCA STARCH, CARRAGEENAN, LOCUST BEAN GUM), SALT, DISTILLED VINEGAR, SUGAR, DRIED GARLIC, DRIED ONION, DEXTROSE, SPICES, MODIFIED CORN STARCH, DRIED GREEN ONION, LACTIC ACID, XANTHAN GUM, GUAR GUM, NATURAL FLAVORS), DELUXE HAM (HAM, WATER, SALT, SUGAR, DEXTROSE, LESS THAN 2% OF SODIUM PHOSPHATE, SODIUM ERYTHORBATE, SODIUM NITRITE), TOMATOES, CUCUMBERS, HARD COOKED EGGS (HARD COOKED EGGS, WATER, CITRIC ACID, SODIUM BENZOATE AND NISIN PREPARATION AS PRESERVATIVES) SWISS CHEESE (PASTEURIZED PART SKIM MILK, SALT, CHEESE CULTURES, ENZYMES)