Which food has less impact on blood sugar?

CRUST (WHEAT FLOUR, WATER, OLIVE OIL, YEAST, SALT, MALTED WHEAT FLOUR), TOPPINGS (MOZZARELLA CHEESE [PASTEURIZED COW MILK, CHEESE CULTURES, SALT, MICROBIAL RENNET], TOMATO SAUCE [TOMATOES, EXTRA VIRGIN OLIVE OIL, WATER, MODIFIED RICE STARCH, SEA SALT, GARLIC, BASIL, BLACK PEPPER], COOKED ITALIAN SAUSAGE [PORK, WATER, SALT, SPICES, DEXTROSE, FLAVORINGS, GARLIC POWDER, PAPRIKA), UNCURED PEPPERONI WITH NO NITRITES OR NITRATES ADDED EXCEPT THOSE NATURALLY OCCURRING IN SEA SALT AND CELERY POWDER [PORK, SEA SALT, SPICES, WATER, DEXTROSE, PAPRIKA, NATURAL FLAVORINGS, GARLIC POWDER, OLEORESIN PAPRIKA, LACTIC ACID STARTER CULTURE], ROASTED RED BELL PEPPER, ROASTED GREEN BELL PEPPER, ROASTED YELLOW BELL PEPPER, ROASTED RED ONION, ROMANO CHEESE (PASTEURIZED COW MILK, CHEESE CULTURES, SALT, MICROBIAL AND ANIMAL RENNET, POWDERED CELLULOSE (TO PREVENT CAKING)], PARMESAN CHEESE IPASTEURIZED COW MILK, CHEESE CULTURES, SALT, MICROBIAL RENNET, POWDERED CELLULOSE (TO PREVENT CAKING)], PARSLEY FLAKES).