Which food has less impact on blood sugar?

BREAD (ENRICHED WHEAT FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, IRON, THIAMIN MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, YEAST, 2% OR LESS OF SOYBEAN OIL, WHEAT GLUTEN, SALT, SUGAR, ACETIC ACID, LACTIC ACID, FUMARIC ACID, ASCORBIC ACID, ENZYMES, CALCIUM PROPIONATE [PRESERVATIVE]), SAUCE (WATER, TOMATO PASTE, SUGAR, SOYBEAN OIL, 2% OR LESS OF MODIFIED FOOD STARCH, GARLIC, SPICES, SALT, DISTILLED VINEGAR, ONION, CULTURED DEXTROSE, POTASSIUM CHLORIDE, GARLIC POWDER, PAPRIKA, NATURAL HICKORY SMOKE FLAVOR), CHEESE MOZZARELLA PART SKIM (PASTEURIZED PART SKIM MILK, CHEESE CULTURES, SALT, ENZYMES), COOKED ITALIAN SAUSAGE (PORK, WATER, SPICES, SALT, SUGAR, FLAVORINGS), PEPPERONI MADE WITH PORK, CHICKEN AND BEEF (PORK, MECHANICALLY SEPARATED CHICKEN, BEEF, SALT, CONTAINS 2% OR LESS OF SPICES, DEXTROSE, PORK STOCK, LACTIC ACID STARTER CULTURE, OLEORESIN OF PAPRIKA, FLAVORING, SODIUM NITRITE, SODIUM ASCORBATE, PAPRIKA, PROCESSED WITH NATURAL SMOKE FLAVOR, BHA, BHT, CITRIC ACID TO HELP PROTECT FLAVOR), BACON (CURED WITH: WATER, SALT, SUGAR, SMOKE FLAVORING, SODIUM PHOSPHATE, SODIUM ERYTHORBATE, SODIUM NITRITE), MARGARINE (SOYBEAN OIL, WATER, MONO & DIGLYCERIDES, 2% OR LESS OF SALT, NATURAL FLAVOR, VITAMIN A PALMITATE, VITAMIN D3).