Which food has less impact on blood sugar?

CRUST: BLEACHED ENRICHED WHEAT 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). TOPPING: SAUCE (WATER, TOMATO PASTE, CANOLA OIL, SUGAR, SALT, SPICES [BLACK PEPPER, OREGANO, FENNEL], MODIFIED CORN STARCH, GARLIC, ONION, SUNFLOWER OIL (MFG. AID}), LOW-MOISTURE PART-SKIM MOZZARELLA (MILK, ULTRAFILTERED MILK, SALT, CHEESE CULTURES, ENYZMES), CHEDDAR CHEESE (MILK, ULTRAFILTERED MILK, CREAM, WHEY, SALT, CHEESE CULTURES, ANNATTO {COLOR}, ENZYMES), IMITATION MOZZARELLA CHEESE (WATER, PALM OIL, RENNET CASEIN, MODIFIED CORN STARCH, SALT, SODIUM PHOSPHATE, CITRIC ACID, TRISODIUM CITRATE, POTASSIUM SORBATE (ANTIOXIDANT), LACTIC ACID, TURMERIC (COLOR), ANNATTO (COLOR}), PARMESAN CHEESE (MILK, SALT, LIPASE, ENZYMES, CHEESE CULTURES, POWDERED CELLULOSE (TO PREVENT CAKING), MAY ALSO CONTAIN CALCIUM CHLORIDE, NATAMYCIN (ANTIMICROBIAL}), POWDERED CELLULOSE (TO PREVENT CAKING}.