Which food has less impact on blood sugar?

SUB BUN [UNBLEACHED FLOUR (WHEAT, MALTED BARLEY), WATER, SUGAR, PALM OIL, WHEAT GLUTEN, YEAST, SALT, CONTAINS LESS THAN 2% OF EACH OF THE FOLLOWING: CORN FLOUR, ACETIC ACID, LACTIC ACID, SOYBEAN OIL, L-CYSTEINE, GUAR GUM, ASCORBIC ACID, ENZYMES, MONO-GLYCERIDES AND CALCIUM PROPIONATE (PRESERVATIVE)], SMOKED HAM WATER ADDED [A PORTION OF GROUND HAM SHANK AND HAM ADDED (CURED WITH WATER, SALT, CONTAINS 2% OR LESS OF MODIFIED FOOD STARCH, CORN SYRUP, DEXTROSE, POTASSIUM LACTATE, SODIUM LACTATE, SUGAR, SODIUM PHOSPHATES, SODIUM DIACETATE, SODIUM ERYTHORBATE, SODIUM NITRITE)], COTTO SALAMI [MECHANICALLY SEPARATED CHICKEN, PORK, BEEF, BEEF HEARTS, CORN SYRUP, WATER, FLAVORING, MODIFIED FOOD STARCH, CONTAINS 2% OR LESS OF SALT, POTASSIUM LACTATE, SODIUM LACTATE, DEXTROSE, SODIUM DIACETATE, SODIUM ERYTHORBATE, SODIUM NITRITE], TURKEY BREAST WITH WHITE TURKEY AND BROTH [TURKEY BREAST WITH WHITE TURKEY, WATER, CONTAINS 2% OR LESS POTASSIUM LACTATE, MODIFIED FOOD STARCH, DEXTROSE, SALT, SODIUM PHOSPHATE, SODIUM DIACETATE, FLAVORING], PASTEURIZED PROCESS AMERICAN CHEESE[AMERICAN CHEESE (PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES), WATER, CREAM, SODIUM PHOSPHATE (EMULSIFIER), SORBIC ACID (PRESERVATIVE), ARTIFICIAL COLOR], PASTEURIZED PROCESS SWISS AND AMERICAN CHEESE [CULTURED MILK, WATER, CREAM, SODIUM CITRATE, SALT, SODIUM HEXAMETAPHOSPHATE, SORBIC ACID (PRESERVATIVE), LACTIC ACID, ENZYMES].