Which food has less impact on blood sugar?

CRUST (ENRICHED UNBLEACHED WHEAT FLOUR [WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, PALM OIL, YEAST, CONTAINS LESS THAN 2% OF THE FOLLOWING: SUGAR, SOYBEAN OIL, EXTRA VIRGIN OLIVE OIL, SALT, NATURAL FLAVOR), PIZZA SAUCE (TOMATOES [TOMATOES, TOMATO JUICE, CITRIC ACID], WATER, TOMATO PASTE, SUGAR, MODIFIED CORN STARCH, SALT, PARMESAN AND ROMANO CHEESE MADE FROM COW'S MILK [PASTEURIZED PART-SKIM MILK, CHEESE CULTURE, SALT, ENZYMES], CITRIC ACID, SPICES, POTASSIUM SORBATE AND SODIUM BENZOATE AS PRESERVATIVES, ONION POWDER, GARLIC POWDER), LOW MOISTURE MOZZARELLA CHEESE (PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES), SLICED PEPPERONI (PORK, BEEF, SPICES, DEXTROSE, LACTIC ACID STARTER CULTURE, OLEORESIN OF PAPRIKA, FLAVORING, SODIUM NITRITE, BHA, BHT, CITRIC ACID), PROVOLONE CHEESE NOT SMOKED (PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES), DICED PEPPERONI (PORK, BEEF, SALT, SPICES, DEXTROSE, LACTIC ACID STARTER CULTURE, OLEORESIN OF PAPRIKA, FLAVORING, GARLIC POWDER, SODIUM NITRITE, BHA, BHT, CITRIC ACID), GRATED PARMESAN AND ROMANO CHEESES (PASTEURIZED COW'S MILK, CHEESE CULTURES, SALT, ENZYMES, POWDERED CELLULOSE ADDED TO PREVENT CAKING), SPICES, DEHYDRATED GARLIC.