Which food has less impact on blood sugar?

CIABATTA [UNBLEACHED BREAD FLOUR (WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, IRON, THIAMIN MONONITRATE, RIBOFLAVIN, FOLIC ACID), WATER, CONTAINS LESS THAN 2% OF: SALT, SUGAR, PALM OIL, VINEGAR, CULTURED WHEAT STARCH, WHEAT FLOUR, CITRIC ACID, YEAST, ASCORBIC ACID (VITAMIN C), ENZYMES], COOKED SEASONED SHREDDED CHICKEN BREAST WITH RIB MEAT (CHICKEN BREAST WITH RIB MEAT, WATER, LESS THAN 2% POTATO STARCH, SALT, NATURAL FLAVORINGS, VINEGAR, SPICE), LOW-MOISTURE PART SKIM MOZZARELLA CHEESE (CULTURED PASTEURIZED PART-SKIM MILK, SALT, ENZYMES), BASIL PESTO (SOYBEAN OIL, BASIL, PARMESAN AND ROMANO CHEESE [PASTEURIZED COW'S MILK, CHEESE CULTURES, SALT, ENZYMES], EXTRA VIRGIN OLIVE OIL, DEHYDRATED GARLIC, LESS THAN 2% SPICE, SALT, WATER, CITRIC ACID, TBHQ [ANTIOXIDANT], SORBIC ACID), SUN-DRIED TOMATO PESTO (SOYBEAN OIL, DICED TOMATOES [TOMATOES, TOMATO JUICE, CITRIC ACID, CALCIUM CHLORIDE], PARMESAN AND ROMANO CHEESE [PASTEURIZED COWS MILK, CHEESE CULTURE, SALT, ENZYMES], SUNDRIED TOMATOES, EXTRA VIRGIN OLIVE OIL, GREEN ONIONS, SPICES, GARLIC PUREE [GARLIC, HIGH FRUCTOSE CORN SYRUP], CONTAINS LESS THAN 2% SALT, DEHYDRATED TOMATO POWDER, CITRIC ACID, NATURAL SMOKE FLAVOR, SODIUM BENZOATE [PRESERVATIVE], SORBIC ACID, TBHQ [ANTIOXIDANT], SPICE EXTRACTIVES).