Which food has less impact on blood sugar?

CRUST (ENRICHED WHEAT FLOUR [WHEAT FLOUR, FERROUS SULFATE, NIACIN, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID, ENZYME], WATER, SOYBEAN OIL, CONTAINS 2% OR LESS OF EACH: YEAST, VINEGAR*, SUGAR, SALT, CULTURED WHEY*, WHEY, DOUGH CONDITIONER [WHEAT FLOUR, ASCORBIC ACID, ENZYMES], SOY LECITHIN [PROCESSING AID]), SAUCE (WATER, TOMATOES, SUGAR, SALT, SPICES, ONION POWDER, XANTHAN GUM, GARLIC POWDER), CHEESES (LOW- MOISTURE PART-SKIM MOZZARELLA CHEESE [CULTURED PASTEURIZED PART-SKIM MILK, SALT, ENZYMES], PARMESAN CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, RENNET], ROMANO CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, RENNET], ASIAGO CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, RENNET]), UNCURED PEPPERONI CONTAINS NO ADDED NITRATES OR NITRITES EXCEPT THOSE NATURALLY OCCURING IN SEA SALT AND CELERY JUICE POWDER (PORK, BEEF, SEA SALT*, CONTAINS 2% OR LESS OF EACH: NATURAL FLAVORS, SPICES, LACTIC ACID STARTER CULTURE, CULTURED CELERY JUICE*, DEXTROSE, EXTRACTIVES OF PAPRIKA, CHERRY POWDER, MAY CONTAIN: CELERY POWDER*, CANE SUGAR, NATURAL SPICE EXTRACTIVES, OLEORESIN OF PAPRIKA), ITALIAN SAUSAGE (PORK, WATER, SPICES, SALT, CORN SYRUP SOLIDS, PAPRIKA, NATURAL FLAVORING, SUGAR), RED PEPPERS, GREEN PEPPERS, BLACK OLIVES (OLIVES, SALT, FERROUS GLUCONATE [STABILIZER]), ONIONS.