Which food has less impact on blood sugar?

DELI ROLL ([ENRICHED WHEAT FLOUR {WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), MALTED BARLEY FLOUR], WATER, PALM OIL, SUGAR, EGGS, NONFAT DRY MILK, LACTOSE, VITAL WHEAT GLUTEN, DOUGH CONDITIONER [ENRICHED WHEAT FLOUR {NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID}, DATEM, CANOLA OIL, DEXTROSE, ASCORBIC ACID, L-CYSTEINE, ENZYMES], SALT, YEAST, XANTHAN GUM, CALCIUM PROPIONATE (A MOLD INHIBITOR]), BEEF FILLING (BEEF, WATER, SEASONING [SALT HYDROLYZED SOY PROTEIN, MODIFIED FOOD STARCH, YEAST EXTRACT, NATURAL FLAVOR {CONTAINS WHEAT, SOYBEANS, AND CELERY SEED}, SUGAR, SOY SAUCE POWDER {WHEAT, SOYBEANS, SALT}, ONION POWDER, MALTODEXTRIN, CARAMEL COLOR, GARLIC POWDER, DISODIUM INOSINATE, DISODIUM GUANYLATE, SPICE], SALT, MODIFIED FOOD STARCH, YEAST EXTRACT, NATURAL FLAVORINGS, SODIUM PHOSPHATE, DEXTROSE), PASTEURIZED PROCESS CHEDDAR CHEESE (CULTURED MILK, WATER, CREAM, SODIUM CITRATE, SODIUM PHOSPHATES, SALT, LACTIC ACID, VEGETABLE COLOR (ANNATTO AND PAPRIKA EXTRACT), ENZYMES), BACON (CURED WITH: WATER SALT, SUGAR, NATURAL SMOKE FLAVOR, SODIUM PHOSPHATE, SODIUM ERYTHORBATE, SODIUM NITRITE).