Which food has less impact on blood sugar?

SUB ROLL (FLOUR [BLEACHED WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, DEXTROSE, SALT, DOUGH CONDITIONER [WHEAT FLOUR, DIACETYL TARTARIC ACID ESTERS OF MONO-AND DIGLYCERIDES, ENZYMES, CONTAINS 2% OR LESS OF THE FOLLOWING: ASCORBIC ACID, SOYBEAN OIL, POTASSIUM IODATE, L-CYSTEINE], YEAST, MARGARINE [CANOLA AND/OR SOYBEAN OIL, PALM OIL, PALM KERNEL OILS], DOUGH CONDITIONER [DIACETYL TARTARIC ACID ESTERS OF MONO-AND DIGLYCERIDES, AMMONIUM SULFATE, CALCIUM SULFATE, POTASSIUM IODATE, ASCORBIC ACID), CAPICOLA STYLE HAM WATER ADDED (COATED WITH WATER, PAPRIKA, SUGAR, SPICES AND SPICE EXTRACTIVES. CURED WITH: WATER, DEXTROSE, SALT, CONTAINS LESS THAN 2% OF SUGAR, POTASSIUM LACTATE, SODIUM PHOSPHATE, SODIUM DIACETATE, FLAVORING, SODIUM ERYTHORBATE, SODIUM NITRITE), TOMATO, HARD SALAMI (PORK, SALT, DEXTROSE, CONTAINS 2% OR LESS OF BEEF, FLAVORINGS, LACTIC ACID STARTER CULTURE, NATURAL SMOKE FLAVOR, SODIUM NITRITE, SPICES, SODIUM ASCORBATE, BHA, BHT, CITRIC ACID), PROVOLONE CHEESE (PROVOLONE CHEESE WITH SMOKE FLAVOR [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES, NATURAL SMOKE FLAVOR]), PEPPERONI (PORK, SALT, CONTAINS 2% OR LESS OF BEEF, DEXTROSE, FLAVORINGS, LACTIC ACID STARTER CULTURE, OLEORESIN OF PAPRIKA, SODIUM NITRITE, SPICES, VITAMIN C [SODIUM ASCORBATE], BHA, BHT, CITRIC ACID), GREEN LEAF LETTUCE, DILL PICKLE (CUCUMBERS, WATER, VINEGAR, SALT, SPICES, GARLIC, CALCIUM CHLORIDE, POTASSIUM SORBATE [PRESERVATIVE], YELLOW 5, POLYSORBATE 80), YELLOW ONION.