Which food has less impact on blood sugar?

ROMAINE LETTUCE, 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], LESS THAN 2% OF SALT, DISTILLED VINEGAR, SEASONING BLEND [DEXTROSE, SALT, NATURAL FLAVORS, MODIFIED CORN STARCH], SUGAR, DRIED GARLIC, DRIED ONION, SPICES, MODIFIED CORN STARCH, DRIED GREEN ONION, LACTIC ACID, XANTHAN GUM, GUAR GUM.), GRILLED CHICKEN (BONELESS CHICKEN BREAST, WATER, CONTAINS 2% OR LESS OF THE FOLLOWING: VINEGAR, SALT, NATURAL FLAVORS), TOMATO, CROUTONS (ENRICHED FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMIN MONONITRATE, RIBOFLAVIN, FOLIC ACID], CANOLA AND/OR SUNFLOWER OIL [WITH ROSEMARY EXTRACT AND ASCORBIC ACID (TO PRESERVE FRESHNESS)] SUGAR, YEAST, SALT 2% OR LESS OF GARLIC*, CHEDDAR CHEESE [MILK, SALT, CHEESE CULTURES, ENZYMES], MILK WHEY, ROMANO CHEESE FROM COW'S MILK [PASTEURIZED PART, SKIM MILK, CULTURES, ENZYMES, SALT], ENZYME MODIFIED ROMANO CHEESE [PASTEURIZED COW'S MILK, CLTURES, SALT, ENZYMES], MALTODEXTRIN, YEAST EXTRACT, PARSLEY*, AUTOLYZED YEAST, ONION*, ENZYME MODIFIED CHEDDAR CHEESE [PASTEURIZED MILK, CULTURES, SALT, ENZYMES], NATURAL FLAVORS [CONTAINS MILK], UNSALTED BUTTER [PASTEURIZED CREAM, NATURAL FLAVOR], ENZYMES, *DEHYDRATED), CUCUMBER, CHEDDAR CHEESE (PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES, ANNATTO [COLOR], ANTI CAKING AGENT [POTATO STARCH, CORN STARCH, POWDERED CELLULOSE], NATAMYCIN [A NATURAL MOLD INHIBITOR.]).