Which food has less impact on blood sugar?

VEGETABLE MIX: GREEN CABBAGE, GREEN LEAF LETTUCE, KALE, RED CABBAGE, CARROTS; GREEK VINAIGRETTE DRESSING: WATER, CANOLA OIL, SUGAR, EXTRA VIRGIN OLIVE OIL, OLIVE POMACE OIL, WHITE WINE VINEGAR, FETA CHEESE (MILK, SALT, CULTURE, ENZYMES), DISTILLED VINEGAR, MODIFIED CORN STARCH, SALT, DRIED ONION, DRIED GARLIC, SPICES, NATURAL FLAVORS, LEMON JUICE CONCENTRATE, ASCORBIC ACID, XANTHAN GUM, GUAR GUM, DRIED BELL PEPPER; TOMATOES; CHICKEN: CHICKEN BREAST MEAT WITH RIB MEAT, WATER, SEASONING (GARLIC POWDER, SPICES [INCLUDING BASIL AND OREGANO], ONION POWDER, ROMANO CHEESE [PART SKIM COW'S MILK, CULTURES, SALT, ENZYMES], SALT), POTATO STARCH, SALT, VINEGAR; CHEESE: PASTEURIZED MILK, SALT, CHEESE CULTURES, ENZYMES AND POTATO STARCH (ADDED TO PREVENT CAKING); SEASONED PITA CHIPS: ENRICHED WHEAT FLOUR (WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMIN MONONITRATE, RIBOFLAVIN, FOLIC ACID), SUNFLOWER OIL, 2% OR LESS OF SALT, SUGAR, YEAST, MALTODEXTRIN, GARLIC POWDER, CORN SYRUP SOLIDS, SPICES, ONION POWDER, NATURAL FLAVORS, CITRIC ACID, ROSEMARY EXTRACT AND ASCORBIC ACID (TO PRESERVE FRESHNESS); BLACK OLIVES: BLACK OLIVES, SEA SALT, WATER, FERROUS GLUCONATE (ADDED TO STABILIZE COLOR) MAY CONTAIN PIT OR PIT FRAGMENTS.