Which food has less impact on blood sugar?

CRUST: ENRICHED WHEAT FLOUR (FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID, ENZYME), WATER, PART-SKIM MOZZARELLA CHEESE (PASTEURIZED MILK, CULTURES, SALT, ENZYMES), SOYBEAN OIL, SUGAR, YEAST, PALM OIL, MALT EXTRACT, DOUGH CONDITIONERS (DIACETYL TARTARIC ACID ESTER OF MONO- AND DIGLYCERIDES, WHEAT GLUTEN, SUGAR, DEXTROSE, MALTED BARLEY FLOUR, GUAR GUM, ACTIVE MALT FLOUR, CALCIUM PYROPHOSPHATE, ASCORBIC ACID, ENZYME, L-CYSTEINE), MODIFIED FOOD STARCH, SALT, SODIUM BICARBONATE, SODIUM ALUMINUM PHOSPHATE, METHYLCELLULOSE. TOPPINGS: SAUCE (WATER, TOMATO PASTE, SOYBEAN OIL, MODIFIED FOOD STARCH, SALT, SEASONING [SALT, PAPRIKA, SPICES, ONION POWDER, GARLIC POWDER, PARMESAN CHEESE {PASTEURIZED CULTURED PART-SKIM MILK, SALT, ENZYMES}], SPICES, GARLIC POWDER, XANTHAN GUM), LOW MOISTURE PART-SKIM MOZZARELLA CHEESE (PASTEURIZED PART-SKIM MILK, CHEESE CULTURES, SALT, ENZYMES), COOKED ITALIAN STYLE PIZZA TOPPING (SAUSAGE [PORK, MECHANICALLY SEPARATED CHICKEN, SPICES, SALT, WATER, SUGAR, PAPRIKA, FLAVORINGS, SODIUM PHOSPHATES], WATER, TEXTURED VEGETABLE PROTEIN [SOY FLOUR, SOY PROTEIN CONCENTRATE, CARAMEL COLOR]), PEPPERONI MADE WITH PORK, CHICKEN AND BEEF (PORK, MECHANICALLY SEPARATED CHICKEN, BEEF, SALT, SPICES, DEXTROSE, LACTIC ACID STARTER CULTURE, OLEORESIN PAPRIKA, SODIUM ASCORBATE, FLAVORING, SODIUM NITRITE, BHA, BHT, CITRIC ACID), PEPPERS, ONIONS, BLACK OLIVES (RIPE OLIVES, SALT, FERROUS GLUCONATE [TO STABILIZE COLOR]).