Which food has less impact on blood sugar?

TOPPINGS: CHEESES (LOW MOISTURE MOZZARELLA CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES], CHEDDAR CHEESE [PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES, ANNATTO {COLOR}], 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), COOKED ITALIAN SAUSAGE (PORK, SPICES, WATER, SALT, CORN SYRUP SOLIDS, DRIED GARLIC, PAPRIKA, SUGAR, LEMON JUICE POWDER [CORN SYRUP SOLIDS, LEMON JUICE SOLIDS, LEMON OIL], FLAVORING), 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), BLACK OLIVES (RIPE OLIVES, SALT, FERROUS GLUCONATE [TO STABILIZE COLOR]), YELLOW PEPPERS, GREEN PEPPERS, RED PEPPERS, RED ONIONS, 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.