Which food has less impact on blood sugar?

CRUST: ENRICHED UNBLEACHED WHEAT FLOUR (WHEAT FLOUR, NIACIN, IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), WATER, SOYBEAN OIL (WITH CITRIC ACID ADDED AS A PRESERVATIVE), DOUGH CONDITIONER (SALT, WHEAT FLOUR, DEXTROSE, MONO AND DIGLYCERIDES, ASCORBIC ACID, L-CYSTEINE), FERMENTED WHEAT FLOUR, SUGAR, YEAST (YEAST, SORBITAN MONOSTEARATE, ASCORBIC ACID), BUTTER FLAVOR (CONTAINS MALTODEXTRIN AND NATURAL FLAVORS), SALT, GARLIC POWDER. TOPPINGS: PART SKIM MOZZARELLA CHEESE (PASTEURIZED PART SKIM MILK, CULTURES, SALT, ENZYMES), PIZZA SAUCE (WATER, TOMATO PASTE, SUGAR, SALT, MODIFIED FOOD STARCH, NATURAL PARMESAN CHEESE FLAVOR [CHEESE {PASTEURIZED MILK, CULTURES, SALT, ENZYMES}, WATER, DISODIUM PHOSPHATE], GARLIC PUREE, GARLIC POWDER, ONION POWDER, CITRIC ACID, OREGANO, BASIL, BLACK PEPPER, CAYENNE PEPPER), PEPPERONI (PORK AND BEEF, SALT, FLAVORINGS, LACTIC ACID STARTER CULTURE, OLEORESIN OF PAPRIKA, SODIUM NITRITE, BHA, BHT, CITRIC ACID [TO PROTECT FLAVOR]. MAY CONTAIN DEXTROSE, NATURAL FLAVORING, NATURAL SMOKE FLAVORING, SODIUM ASCORBATE [VITAMIN C], SPICES, GARLIC POWDER, SUGAR), PROVOLONE CHEESE (PASTEURIZED MILK, CULTURES, SALT, ENZYMES), PARMESAN & ROMANO CHEESE BLEND (PARMESAN CHEESE [MADE FROM COW'S MILK, SALT, ENZYMES], ROMANO CHEESE [MADE FROM COW'S MILK, SALT, ENZYMES], POWDERED CELLULOSE/STARCH BLEND ADDED TO PREVENT CAKING), BREAD CRUMBS (ENRICHED FLOUR [WHEAT FLOUR, THIAMINE, NIACIN, THIAMINE MONONITRATE, FOLIC ACID], SALT) GARLIC, PARSLEY, OREGANO.