Which food has less impact on blood sugar?

WHEAT FLOUR (WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID, [MAY CONTAIN VITAMIN C {ASCORBIC ACID ADDED AS A DOUGH CONDITIONER}, ENZYME {ADDED FOR IMPROVED BAKING}, MALTED BARLEY FLOUR]), GRILLED COOKED SLICED BEEF WATER AND BINDER PRODUCT WITH NATURAL SMOKE FLAVOR ADDED (BEEF, WATER, SOY PROTEIN CONCENTRATE, MODIFIED CORNSTARCH, DEXTROSE, SODIUM PHOSPHATE, SALT, HYDROLYZED SOY PROTEIN, NATURAL FLAVORINGS), COATED WITH (DEXTROSE, SODIUM CITRATE, SALT, CARAMEL COLOR, SODIUM DIACETATE, SPICES, NATURAL FLAVORINGS, PAPRIKA, HYDROLYZED CORN PROTEIN, MALTODEXTRIN, GRILL FLAVOR, MODIFIED FOOD STARCH, CORN SYRUP SOLIDS, NATURAL SMOKED FLAVOR, GUAR GUM), WATER, PROVOLONE CHEESE (PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES), UNSALTED BUTTER (PASTEURIZED CREAM, NATURAL FLAVORINGS [LACTIC ACID, STARTER DISTILLATE]), NONFAT DRY MILK, GRATED PARMESAN CHEESE (PASTEURIZED PART-SKIM COW'S MILK, CULTURE, SALT, STARCH, POWDERED CELLULOSE TO PREVENT CAKING), SALT, YEAST, SUGAR, DOUGH CONDITIONER BLEND (WHEAT FLOUR, MALTED BARLEY FLOUR, ASCORBIC ACID, SOYBEAN OIL, ENZYMES).