Which food has less impact on blood sugar?

CRUST: FLOUR (WHEAT FLOUR, MALTED BARLEY FLOUR), WATER, WHEAT SOURDOUGH POWDER (WHEAT SOURDOUGH POWDER, INSTANT DRY YEAST, INACTIVE YEAST, LACTIC AND ACETIC ACIDS, ASCORBIC ACID, ENZYMES), SOYBEAN OIL, EXTRA VIRGIN OLIVE OIL, YEAST, SUGAR, SKIM MILK, SEA SALT, DOUGH CONDITIONER (ENRICHED WHEAT FLOUR [WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMIN MONONITRATE, RIBOFLAVIN, FOLIC ACID], GLUTEN, ENZYMES, ASCORBIC ACID), CALCIUM PROPIONATE, INACTIVE YEAST, ENZYMES. CHEESES: LOW MOISTURE PART SKIM MOZZARELLA CHEESE (CULTURED PASTEURIZED PART SKIM MILK, SALT, ENZYMES), PROVOLONE CHEESE (CHEESE PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES), LOW MOISTURE PART-SKIM MOZZARELLA CHEESE (PASTEURIZED PART-SKIM MILK, CHEESE CULTURE, SALT, ENZYMES). PIZZA SAUCE : PIZZA SAUCE (CRUSHED TOMATO, CANOLA OIL, SEA SALT, IMPORTED EXTRA VIRGIN OLIVE OIL, SPICES AND GARLIC, NATURAL DERIVED CITRIC ACID), GARLIC POWDER, SUGAR, SALT, DRIED OREGANO, BLACK PEPPER. NATURAL UNCURED PEPPERONI: PORK, BEEF, SALT, CONTAINS 2% OR LESS OF WATER, SPICES, DEXTROSE, SEASONING (EXTRACTIVES OF PAPRIKA, NATURAL FLAVOR, SMOKE FLAVOR), CULTURED CELERY POWDER, CHERRY POWDER, LACTIC ACID STARTER CULTURE, SALT, NATURAL FLAVORING, TURBINADO SUGAR.