Which food has less impact on blood sugar?

TOPPINGS: CHEESES (LOW MOISTURE MOZZARELLA CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES], GRUYERE CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES], FONTINA CHEESE [{PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES}, POWDERED CELLULOSE ADDED TO PREVENT CAKING, NATAMYCIN {A NATURAL MOLD INHIBITOR}], ASIAGO CHEESE [{PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES}, POWDERED CELLULOSE ADDED TO PREVENT CAKING, NATAMYCIN {A NATURAL MOLD INHIBITOR}], ROMANO CHEESE [{PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES}, POWDERED CELLULOSE ADDED TO PREVENT CAKING, NATAMYCIN {A NATURAL MOLD INHIBITOR}]), SAUCE (TOMATO PUREE [WATER, TOMATO PASTE], CONTAINS 2% OR LESS OF SUGAR, SPICES, SALT, SOYBEAN OIL, CITRIC ACID, XANTHAN GUM, DEHYDRATED ONION, DEHYDRATED GARLIC), PEPPERONI (PORK, SALT, CONTAINS 2% OR LESS OF BEEF, DEXTROSE, FLAVORINGS, LACTIC ACID STARTER CULTURE, OLEORESIN OF PAPRIKA, SODIUM NITRITE, SPICES, VITAMIN C [SODIUM ASCORBATE], BHA, BHT, CITRIC ACID), SPICES. CRUST: ENRICHED FLOUR (WHEAT FLOUR, NIACIN, IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), WATER, PALM OIL, SOYBEAN OIL, YEAST, CONTAINS 2% OR LESS OF BREAD CRUMBS (WHEAT FLOUR, SUGAR, YEAST, SALT), SUGAR, SALT, ACACIA GUM.