Which food has less impact on blood sugar?

CRUST (ENRICHED WHEAT FLOUR [WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, PALM OIL, BREAD CRUMBS [WHEAT FLOUR, SUGAR, YEAST, SALT], YEAST, SOYBEAN OIL, CONTAINS 2% OR LESS OF: SUGAR, SALT, GUM ACACIA, WHEAT FLOUR, FERMENTED WHEAT FLOUR, ENZYMES), SAUCE (TOMATO PUREE [WATER, TOMATO PASTE], SUGAR, CONTAINS 2% OR LESS OF: SPICES, BASIL, SALT, SOYBEAN OIL, CITRIC ACID, DEHYDRATED ONION, XANTHAN GUM, GARLIC POWDER), LOW MOISTURE MOZZARELLA CHEESE (PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES), SLICED PEPPERONI (PORK, BEEF, SALT, CONTAINS 2% OR LESS OF: DEXTROSE, GARLIC POWDER, LACTIC ACID STARTER CULTURE, SPICE EXTRACTIVES, OLEORESIN PAPRIKA, SODIUM NITRITE, SPICES, BHA [PRESERVATIVE], BHT [PRESERVATIVE], CITRIC ACID [PRESERVATIVE]), NOT SMOKED PROVOLONE CHEESE (CULTURED PASTEURIZED MILK, SALT, ENZYMES), DICED PEPPERONI (PORK, BEEF, SALT, CONTAINS 2% OR LESS OF: DEXTROSE, FLAVORINGS, LACTIC ACID STARTER CULTURE, OLEORESIN PAPRIKA, SODIUM NITRITE, BHA [PRESERVATIVE], BHT [PRESERVATIVE], CITRIC ACID [PRESERVATIVE]), CONTAINS 2% OR LESS OF: DEHYDRATED GARLIC, GRATED PARMESAN CHEESE (PARMESAN CHEESE [PASTEURIZED PART-SKIM MILK, CHEESE CULTURES, SALT, ENZYMES], POWDERED CELLULOSE [ANTI-CAKING AGENT]), GRATED ROMANO CHEESE (ROMANO CHEESE MADE FROM COW'S MILK [PASTEURIZED COW'S MILK, CHEESE CULTURES, SALT, ENZYMES], POWDERED CELLULOSE [ANTI-CAKING AGENT]), DRIED OREGANO, DRIED PARSLEY.