Which food has less impact on blood sugar?

CRUST (ENRICHED FLOUR [WHEAT FLOUR, NIACIN, FERROUS SULFATE, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID, ENZYMES], WATER, SOYBEAN OIL, CONTAINS 2% OF 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 [PASTEURIZED PART SKIM MILK, CHEESE CULTURES, SALT, ENZYMES], PARMESAN CHEESE [PASTEURIZED COW'S MILK, CHEESE CULTURES, SALT, ENZYMES], ROMANO CHEESE [PASTEURIZED COW'S MILK, CHEESE CULTURES, SALT, ENZYMES], ASIAGO CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES]), UNCURED PEPPERONI CONTAINS NO ADDED NITRATES OR NITRITES EXCEPT THOSE NATURALLY OCCURRING IN SEA SALT AND CELERY JUICE POWDER (PORK, BEEF, SEA SALT, CONTAINS 2% OR LESS OF EACH: SPICES, LACTIC ACID STARTER CULTURE, NATURAL FLAVOR, OLEORESIN OF PAPRIKA, MAY CONTAIN: DEXTROSE, GARLIC POWDER, CELERY POWDER*, CANE SUGAR, NATURAL SPICE EXTRACTIVES).