Which food has less impact on blood sugar?

ROMAINE LETTUCE, HOMESTYLE RANCH DRESSING (SOYBEAN AND/OR CANOLA OIL, WATER, DISTILLED VINEGAR, DEHYDRATED BUTTERMILK, CONTAINS LESS THAN 2% OF: SUGAR, SALT, DRIED EGG YOLK, LACTIC ACID, DEHYDRATED GARLIC, DEHYDRATED ONION, CORN STARCH, XANTHAN GUM, DEHYDRATED GREEN ONION, DEHYDRATED CHIVES, NATURAL FLAVORS, BLACK PEPPER), PARMESAN & CHEDDAR CROUTON CRUMBLE (ENRICHED FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, IRON, THIAMIN MONONITRATE, RIBOFLAVIN, FOLIC ACID], SUNFLOWER OIL AND/OR CANOLA OIL WITH ROSEMARY EXTRACT [TO MAINTAIN FRESHNESS], SEASONING [PARMESAN CHEESE POWDER, {PARTIALLY SKIM MILK, CULTURES, SALT, ENZYMES}, CHEDDAR CHEESE POWDER [MILK, SALT, CULTURES, ENZYMES], SALT, NATURAL PARMESAN CHEESE FLAVOR, ONION POWDER, NATURAL BUTTER FLAVOR, YEAST EXTRACT, CITRIC ACID, GARLIC POWDER, LACTIC ACID, SILICON DIOXIDE], PALM OIL*, YEAST, SEA SALT, CANE SUGAR), CHEDDAR CHEESE (CHEDDAR CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES, COLOR ADDED], POWDERED CELLULOSE [TO PREVENT CAKING]), CARROT, RED CABBAGE.