Which food has less impact on blood sugar?

CRUST {ENRICHED WHEAT FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE {B1}, RIBOFLAVIN {B2}, FOLIC ACID], WATER, YEAST, BREAD CRUMBS [ENRICHED BLEACHED WHEAT FLOUR {ENRICHED WITH NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID}, SUGAR, SALT], PALM OIL, SOY LECITHIN, CONTAINS 2% OR LESS OF: VEGETABLE OIL WITH ARTIFICIAL BUTTER FLAVOR [LIQUID AND HYDROGENATED SOYBEAN OIL, CONTAINS LESS THAN 2% OF: SALT, SOY LECITHIN, NATURAL AND ARTIFICIAL FLAVOR, BETA CAROTENE {COLOR}, TBHQ AND CITRIC ACID, DIMETHYLPOLYSILOXANE], OAT FIBER, DEHYDRATED POTATOES, SOYBEAN OIL AND/OR CANOLA OIL, BAKING POWDER [SODIUM ACID PYROPHOSPHATE, SODIUM BICARBONATE, CORNSTARCH, MONOCALCIUM PHOSPHATE], CORNMEAL, VITAL WHEAT GLUTEN, SALT, SUGAR, PARMESAN CHEESE [PASTEURIZED COW'S MILK, CHEESE CULTURES, SALT, RENNET], ROMANO CHEESE [PASTEURIZED COW'S MILK, CHEESE CULTURES, SALT, RENNET], VINEGAR, SOUR FLAVOR [FUMARIC ACID, LACTIC ACID, ACETIC ACID], NATURAL FLAVOR [SUNFLOWER OIL, NATURAL FLAVOR], DOUGH CONDITIONER [ASCORBIC ACID, ENZYMES]), SAUCE (WATER, TOMATOES, OLIVE OIL, SUGAR, SALT, SPICES, GARLIC POWDER), CHEESES (LOW MOISTURE PART SKIM MOZZARELLA [PASTEURIZED PART SKIM MILK, CHEESE CULTURES, SALT, ENZYMES], PARMESAN CHEESE [PASTEURIZED COW'S MILK, CHEESE CULTURES, SALT, ENZYMES], ROMANO CHEESE [PASTEURIZED COW'S MILK, CHEESE CULTURES, SALT, ENZYMES]), PEPPERONI (PORK, BEEF, SALT, SPICES, DEXTROSE, LACTIC ACID STARTER CULTURE, OLEORESIN OF PAPRIKA, FLAVORINGS, SODIUM ASCORBATE, SODIUM NITRITE, BHA, BHT, CITRIC ACID).