Which food has less impact on blood sugar?

INGREDIENTS: CRUST: WHITE WHOLE WHEAT FLOUR, WATER, ENRICHED FLOUR (WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), SUGAR, YEAST, VEGETABLE OIL (SOYBEAN AND/OR CANOLA OIL), CONTAINS 2% OR LESS OF: WHEAT GLUTEN, LEAVENING (SODIUM ACID PYROPHOSPHATE, BAKING SODA, MONOCALCIUM PHOSPHATE, CALCIUM LACTATE), SEA SALT, CORN STARCH, DEFATTED SOY FLOUR, WHEAT STARCH, L-CYSTEINE HYDROCHLORIDE, AMMONIUM SULFATE, ENZYMES (CONTAINS WHEAT). TOPPINGS: SCRAMBLED EGG (WHOLE EGGS, SKIM MILK, SOYBEAN OIL, CORN STARCH, SALT, XANTHAN GUM, CITRIC ACID), CHEDDAR CHEESE (CULTURED PASTEURIZED MILK, SALT, ENZYMES, ANNATTO [COLOR]), LOW MOISTURE PART SKIM MOZZARELLA CHEESE (CULTURED PASTEURIZED PART SKIM MILK, SALT, ENZYMES), TURKEY BACON (WHITE TURKEY, MECHANICALLY SEPARATED TURKEY, TURKEY FAT, SALT, SUGAR, WATER, CONTAINS 2% OR LESS NATURAL SMOKE FLAVORING, SMOKE BACON FLAVOR [MALTODEXTRIN, AUTOLYZED YEAST EXTRACT, NATURAL FLAVOR (CONTAINS NATURAL SMOKE FLAVOR), SUGAR, SALT], SODIUM ERYTHORBATE, ROSEMARY EXTRACT, SODIUM NITRITE, VEGETABLE OIL). SAUCE: NONFAT MILK, MODIFIED FOOD STARCH, CONTAINS 2% OR LESS OF: CREAM, SALT, SPICE, SOY LECITHIN.