Which food has less impact on blood sugar?

CRUST INGREDIENTS: ENRICHED UNBLEACHED WHEAT FLOUR (WHEAT FLOUR, MALTED BARLEY FLOUR, ASCORBIC ACID ADDED AS A DOUGH CONDITIONER, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), WATER, YEAST, SUGAR, SOYBEAN OIL, SALT, GUAR GUM, ENZYME. TOPPINGS INGREDIENTS: LOW MOISTURE PART SKIM MOZZARELLA CHEESE (PASTEURIZED PART SKIM MILK, CHEESE CULTURE, SALT, ENZYMES), UNCURED PEPPERONI *NO NITRATES OR NITRITES ADDED EXCEPT AS NATURALLY OCCURRING IN SEA SALT AND CELERY POWDER (PORK, SEA SALT, SPICES, WATER, DEXTROSE, PAPRIKA, NATURAL FLAVORING, GARLIC POWDER, OLEORESIN PAPRIKA, LACTIC ACID STARTER CULTURE), HATCH GREEN CHILE, UNSMOKED PROVOLONE CHEESE (PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES), PARMESAN CHEESE (PASTEURIZED PART SKIM MILK, CHEESE CULTURE, SALT, ENZYMES), DOMESTIC ROMANO CHEESE (PASTEURIZED COW'S MILK, CHEESE CULTURE, SALT, ENZYMES), POWDERED CELLULOSE ADDED TO PREVENT CAKING. ROASTED RED PEPPER MARINARA INGREDIENTS: WATER, CONCENTRATED CRUSHED TOMATOES, RED BELL PEPPER PUREE, PIZZA SPICE BLEND (SALT, SPICES, SUGAR, GARLIC, CANOLA OIL), ONION PUREE, GREEN BELL PEPPER PUREE, SPICES, PAPRIKA.