Which food has less impact on blood sugar?

WHITE ROLL (ENRICHED WHEAT FLOUR (WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMIN MONONITRATE, RIBOFLAVIN, FOLIC ACID), WATER, SUGAR, YEAST, WHEAT GLUTEN, SALT, MALTED BARLEY EXTRACT, CALCIUM PROPIONATE (PRESERVATIVE), DOUGH CONDITIONERS (DIACETYL TARTARIC ACID ESTERS OF MONO AND DIGLYCERIDES, SODIUM STEAROYL LACTYLATE, ASCORBIC ACID, ENZYMES, L-CYSTEINE, AZODICARBONAMIDE), MALTED BARLEY FLOUR), TOMATO, HAM (CURED WITH WATER, DEXTROSE, CONTAINS 2% OR LESS OF SALT, SODIUM LACTATE, POTASSIUM LACTATE, MODIFIED FOOD STARCH, SODIUM PHOSPHATES, SODIUM DIACETATE, SODIUM ERYTHORBATE, SMOKE FLAVORING, SODIUM NITRITE), PROVOLONE CHEESE (PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES), SALAMI (CHICKEN, PORK, WATER, BEEF HEARTS, BEEF, CORN SYRUP, WATER, FLAVORING, CONTAINS 2% OR LESS OF SALT, POTASSIUM LACTATE, SODIUM LACTATE, DEXTROSE, SODIUM DIACETATE, SODIUM ERYTHORBATE, SODIUM NITRITE), PEPPERONI (PORK, BEEF, SALT, DEXTROSE, SPICES, LACTIC ACID STARTER CULTURE, OLEORESIN OF PAPRIKA, DEHYDRATED GARLIC, SODIUM), GREEN LEAF LETTUCE, BANANA PEPPERS (PEPPERS, VINEGAR, WATER, SALT, CITRIC ACID, SODIUM BISULFITE, 1.10TH OF 1% BENZOATE OF SODA, YELLOW #5).