Which food has less impact on blood sugar?

FLATBREAD CRUST (ENRICHED WHEAT FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, ""00"" FLOUR, CONTAINS LESS THAN 2% OF: YEAST, OLIVE OIL, SALT, CANOLA OIL, SUGAR, WHEAT GLUTEN, VINEGAR, SODIUM STEAROYL LACTYLATE, CALCIUM PROPIONATE [MOLD INHIBITOR]), PIZZA SAUCE (CRUSHED TOMATOES [WATER, CRUSHED TOMATOES], TOMATO PASTE, SALT, SUNFLOWER OIL, EXTRA VIRGIN OLIVE OIL, CITRIC ACID, SPICES, GRANULATED GARLIC, SODIUM BENZOATE AND POTASSIUM SORBATE ADDED AS PRESERVATIVES), LOW-MOISTURE PART-SKIM AND LOW-MOISTURE WHOLE MILK MOZZARELLA CHEESE BLEND (PASTEURIZED PART-SKIM MILK, PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES, POWDERED CELLULOSE [TO PREVENT CAKING]), ITALIAN SAUSAGE (PORK, WATER, SPICES, SALT, CORN SYRUP SOLIDS, GARLIC, SUGAR, PAPRIKA, LEMON JUICE POWDER [CORN SYRUP SOLIDS, LEMON JUICE SOLIDS, LEMON OIL], BHA, BHT, CITRIC ACID), BEEF SAUSAGE (BEEF, WATER, HYDROLYZED SOY PROTEIN, SALT, SPICES, SUGAR, DRIED ONION, BROWN SUGAR, CARAMEL COLOR, VINEGAR POWDER [MALTODEXTRIN, MODIFIED CORN STARCH, VINEGAR], LEMON JUICE POWDER [CORN SYRUP SOLIDS, LEMON JUICE SOLIDS, LEMON OIL], SAFFLOWER OIL, DISODIUM INOSINATE AND DISODIUM GUANYLATE, SPICE EXTRACTS, CITRIC ACID, GARLIC POWDER), MUSHROOMS, BLACK OLIVES (OLIVES, WATER, SALT AND FERROUS GLUCONATE TO STABILIZE COLOR), GREEN BELL PEPPER, RED ONION, PEPPERONI (PORK, BEEF, SALT, SPICES, DEXTROSE, LACTIC ACID STARTER CULTURE, OLEORESIN OF PAPRIKA, FLAVORINGS, SODIUM ASCORBATE, SODIUM NITRITE, BHA, BHT, CITRIC ACID).