Which food has less impact on blood sugar?

CRUST: WHEAT FLOUR, WATER, CORN OIL, YEAST, DOUGH CONDITIONER (SUGAR, CREAM OF TARTAR, BETA-CAROTENE [COLOR]), SOYBEAN OIL, SAUCE: TOMATO PUREE (FRESH VINE-RIPENED CALIFORNIA TOMATOES, CITRIC ACID), WATER, SUGAR, SALT, SPICES, MOZZARELLA CHEESE: PASTEURIZED PART SKIM MILK, CHEESE CULTURES, SALT, ENZYMES, ITALIAN SAUSAGE: PORK, WATER, SPICES, SEA SALT, DRIED CANE SYRUP, RED BELL PEPPER POWDER, DRIED GARLIC, FLAVORINGS, BACON TOPPING: PORK CURED WITH WATER, SALT, SUGAR, SMOKE FLAVORING, SODIUM PHOSPHATE, SODIUM ERYTHOBATE AND / OR SODIUM ASCORBATE, SODIUM NITRITE, MAY CONTAIN CELERY POWDER, CANADIAN BACON: CURED WITH WATER, SUGAR, SALT, CONTAINS 2% OR LESS OF SODIUM LACTATE, SODIUM PHOSPHATE, NATURAL SMOKE FLAVOR, FLAVORING, SODIUM DIACETATE, SODIUM ERYTHORBATE, SODIUM NITRITE, PEPPERONI: PORK, BEEF, SALT, WATER, SPICES, SEASONING (CANE SUGAR AND/OR DEXTROSE, CELERY JUICE POWDER, EXTRACTIVES OF PAPRIKA, CHERRY POWDER, NATURAL FLAVORINGS, NATURAL SMOKE FLAVORING, NATURAL SPICE EXTRACTIVES, GARLIC POWDER AND/OR DEHYDRATED GARLIC), SODIUM ASCORBATE, OLEORESIN AND/OR EXTRACTS OF PAPRIKA, LACTIC ACID STARTER CULTURE, SODIUM NITRITE, CITRIC ACID, BHA, BHT, MAY ALSO CONTAIN SPICES, SPICE EXTRACTIVES, AND/OR SODIUM ERYTHORBATE, ROMANO CHEESE: PASTEURIZED COW'S MILK, CHEESE CULTURES, SALT, ENZYMES, OREGANO.