Which food has less impact on blood sugar?

WHEAT BREAD, PULLMAN (ENRICHED BLEACHED FLOUR [BLEACHED WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, ASCORBIC ACID ADDED AS A DOUGH CONDITIONER, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, CRACKED WHEAT, HIGH FRUCTOSE CORN SYRUP, WHOLE WHEAT FLOUR, YEAST, WHEAT GLUTEN, ROLLED OATS, PARTIALLY HYDROGENATED SOYBEAN & COTTONSEED OILS, CONTAINS LESS THAN 2% OF EACH OF THE FOLLOWING: CORN SYRUP, SALT, WHEAT BRAN, OAT BRAN, SOY LECITHIN, CARAMEL COLOR, CALCIUM PROPIONATE (PRESERVATIVE), AZODICARBONAMIDE, ASCORBIC ACID ADDED AS A DOUGH CONDITIONER, CARBAMIDE, CALCIUM PEROXIDE, CALCIUM PHOSPHATE), TURKEY BREAST TURKEY BREAST AND WHITE TURKEY, TURKEY BROTH AND 2% OR LESS OF THE FOLLOWING: SALT, MODIFIED FOOD STARCH, DEXTROSE, CARRAGEENAN, SODIUM CITRATE, SODIUM PHOSPHATE, SUGAR, NATURAL FLAVORING, SODIUM DIACETATE), HAM (PORTION OF GROUND HAM ADDED CURED WITH WATER, DEXTROSE, SALT, SODIUM LACTATE, SODIUM PHOSPHATE, SODIUM DIACETATE, SODIUM ERYTHORBATE, SODIUM NITRITE), LETTUCE, MILD CHEESE CHDDAR (PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES, ANNATTO (VEGETABLE COLOR), MAYONNAISE (SOYBEAN OIL, WATER, DISTELLED VINEGAR, CORN SYRUP, EGG YOLKS, SALT, CALCIUM DISOBIUM EDTA ADDED TO PROTECT FLAVOR).