Which food has less impact on blood sugar?

CHICKEN SALAD (FULLY COOKED DEBONED CHICKEN WHITE MEAT, MAYONNAISE [SOYBEAN OIL, WATER, EGG YOLKS, DISTILLED VINEGAR, CONTAINS LESS THAN 2% OF SUGAR, SALT, CALCIUM DISODIUM EDTA {ADDED TO PROTECT FLAVOR}, DEHYDRATED GARLIC, DEHYDRATED ONION], CELERY, BREAD CRUMBS [BLEACHED WHEAT FLOUR, DEXTROSE, YEAST, SUGAR, SALT], SEASONING [SALT, SUGAR, YEAST EXTRACT, MALTODEXTRIN, ONION POWDER, GARLIC POWDER, BLACK AND WHITE PEPPER, NOT MORE THAN 2% SILICON DIOXIDE ADDED TO PREVENT CAKING], WHITE PEPPER), GRAPES, CROSTINI CRACKER (WHEAT FLOUR, HIGH OLEIC, SUNFLOWER OIL, EXTRA VIRGIN OLIVE OIL, SEA SALT, BREWER'S YEAST, WHEAT MALT).