Which food has less impact on blood sugar?

CRUST: BLEACHED ENRICHED FLOUR (WHEAT FLOUR, BENZOYL PEROXIDE, NIACIN, REDUCED IRON, ASCORBIC ACID ADDED AS A DOUGH CONDITIONER, THIAMINE MONONITRATE, RIBOFLAVIN, ENZYME ADDED FOR IMPROVED BAKING, FOLIC ACID), WATER, PALM OIL WITH SOYA LECITHIN, SUGAR, CANOLA OIL, YEAST, SALT, WHEY POWDER, LEAVENING (SODIUM ACID PYROPHOSPHATE, SODIUM BICARBONATE, CORN STARCH, MONOCALCIUM PHOSPHATE), SAUCE (WATER, TOMATO PASTE, CRUSHED TOMATOES, EXTRA VIRGIN OLIVE OIL, SUGAR, GARLIC, SALT, SPICES [BLACK PEPPER, OREGANO, FENNEL], MODIFIED CORN STARCH, PARSLEY, BASIL, ONION, SUNFLOWER OIL [MFG. AID]), TOPPINGS: LOW-MOISTURE PART-SKIM MOZZARELLA CHEESE (MILK, ULTRAFILTERED MILK, SALT, CHEESE CULTURES, ENZYME), COOKED ITALIAN SAUSAGE (PORK, SPICES, WATER, SALT, DEXTROSE, SODIUM PHOSPHATES, SUGAR, GARLIC POWDER), PEPPERONI (PORK, BEEF, SALT, SPICE, SPICE EXTRACTIVES, LACTIC ACID STARTER CULTURE, SODIUM NITRITE, DEXTROSE. MAY ALSO CONTAIN NATURAL SMOKE FLAVOR, SODIUM ERYTHORBATE, DEHYDRATED GARLIC, CITRIC ACID), RED AND GREEN PEPPERS, ONIONS, BLACK OLIVES (RIPE BLACK OLIVES, WATER, SALT, FERROUS GLUCONATE [TO PRESERVE COLOR]) POWDERED CELLULOSE (TO PREVENT CAKING).