Which food has less impact on blood sugar?

GRILLED CHICKEN SALAD (CHICKEN BREAST, MAYONNAISE [SOYBEAN OIL, WHOLE EGGS, VINEGAR, EGG YOLKS, WATER, SALT, DEXTROSE, SUGAR, LEMON JUICE, CALCIUM DISODIUM EDTA {PROTECTS QUALITY}, NATURAL FLAVORS], CELERY, RED WINE VINEGAR [CONTAINS SULFITES], GREEN ONIONS, YELLOW ONION, SUGAR, FULLY REFINED CANOLA OIL, DIJON MUSTARD WATER, VINEGAR, MUSTARD SEED, SALT, WHITE WINE, FRUIT PECTIN, CITRIC ACID, TARTARIC ACID, SUGAR, SPICE], SEA SALT [NATURAL SEA SALT, MAGNESIUM CARBONATE], EXTRA VIRGIN OLIVE OIL, TABASCO SAUCE [DISTILLED VINEGAR, RED PEPPER, SALT], BLACK PEPPER, FRENCH GARDEN BLEND [SHALLOTS, GREEN PEPPERCORNS, HERBS {CHIVES, CELERY FLAKES, DILL WEED, BASIL, TARRAGON, CHERVIL, BAY LEAF}], GRANULATED GARLIC, XANTHAN GUM), HEAVY GRAIN BREAD, (WATER, UNBLEACHED BREAD FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN , IRON, THIAMINE-MONONITRATE RIBOFLAVIN, FOLIC ACID], WHOLE WHEAT FLOUR, CRACKED WHEAT, SUNFLOWER SEEDS, HONEY, CANOLA OIL, LESS THAN 2% OF: NONFAT MILK, WHEAT GLUTEN, SALT, MALT [MALTED BARLEY, WHEAT FLOUR, DEXTROSE], VINEGAR, CULTURED WHEAT STARCH, WHEAT FLOUR, CITRIC ACID, YEAST, WHEAT FLOUR, ASCORBIC ACID, ENZYMES, WHEAT FLOUR, ASCORBIC ACID, ENZYMES, RYE FLOUR), ROMAINE LETTUCE