Which food has less impact on blood sugar?

BREAD (ENRICHED BLEACHED FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, YELLOW CORNMEAL, CONTAINS LESS THAN 2% OF RICE FLOUR, YEAST, SALT, SOYBEAN OIL, SUGAR, CULTURED WHEAT FLOUR, VINEGAR, FUMARIC ACID, ACETIC ACID, CITRIC ACID, LACTIC ACID, MONO AND DIGLYCERIDES, ASCORBIC ACID, WHEAT GLUTEN, ENZYMES, SOY LECITHIN), WATER, REDUCED FAT MOZZARELLA CHEESE (CULTURED MILK AND NON-FAT MILK, MODIFIED CORN STARCH*, SALT, VITAMIN A PALMITATE, ENZYME [*INGREDIENT NOT IN REGULAR MOZZARELLA CHEESE]), TOMATO PASTE, PEPPERONI (PORK, BEEF, SALT, SPICES, DEXTROSE, LACTIC ACID STARTER CULTURE, OLEORESIN OF PAPRIKA, FLAVORINGS, SODIUM ASCORBATE, NATURAL SMOKE FLAVOR, SODIUM NITRITE, BHA, BHT, CITRIC ACID), COOKED ITALIAN SAUSAGE (PORK, WATER, SPICES, SALT, SUGAR, FLAVORINGS, BHA, BHT, CITRIC ACID), MUSHROOMS (MUSHROOMS, WATER, SALT, ASCORBIC ACID), SEASONING (MALTODEXTRIN, MODIFIED FOOD STARCH, SUGAR, SALT, DEXTROSE, SPICES AND SPICE EXTRACTIVES, DEHYDRATED GARLIC, CITRIC ACID, XANTHAN GUM, SODIUM BENZOATE [PRESERVATIVE]), ROMANO, PARMESAN, & ASIAGO CHEESE BLEND (PASTEURIZED PART SKIM MILK, COW'S MILK, CHEESE CULTURES, SALT, ENZYMES), CONTAINS 2% OR LESS OF GREEN BELL PEPPERS, RED BELL PEPPERS, ONIONS, SOYBEAN OIL, GARLIC POWDER.