Which food has less impact on blood sugar?

WHOLE GRAIN SLICED BREAD: WHOLE WHEAT FLOUR, UNBLEACHED ENRICHED WHEAT FLOUR (MALTED BARLEY FLOUR, NIACIN, IRON, THIAMINE MONONITRATE (VITAMIN B1), RIBOFLAVIN (VITAMIN B2), FOLIC ACID (A-B VITAMIN), WATER, WHEAT GLUTEN, SOYBEAN OIL, YEAST SUGAR, ENZYME (WHEAT FLOUR, ENZYME), SALT, POTASSIUM CHLORIDE. TURKEY BREAST: TURKEY BREAST, WHITE TURKEY, TURKEY BROTH, CONTAINS 2% OR LESS MODIFIED FOOD STARCH, LITE SALT (POTASSIUM CHLORIDE, SODIUM CHLORIDE) SODIUM PHOSPHATE, SALT, ROSEMARY EXTRACT. TURKEY HAM: TURKEY THIGH MEAT WITH A PORTION OF GROUND TURKEY THIGH TRIM ADDED, VINEGAR, SUGAR, CONTAINS 2% OR LESS SEA SALT, CULYURED CELERY POWDWER, SALT, POTASSIUM CHLORIDE, BAKING SODA, NATURAL SMOKE FLAVOR. REDUCED SODIUM REDUCED FAT PASTEURIZED PROCESS AMERICAN CHEESE: CULTURED SKIM MILK AND MILK, POTASSIUM CITRATE, SODIUM CITRATE, APO-CAROTENAL (COLOR), SALT, SORBIC ACID, ENZYMES, SOY LECITHIN (NON-STICKING AGENT). LOW MOISTURE PART SKIM MOZZARELLA CHEESE: PASTEURIZED SKIM MILK, CHEESE CULTURES, SALT, NATAMYCIN (A NATURAL MOLD INHIBITOR), ENZYMES, SOY LECITHIN (NON-STICKING AGENT).