Which food has less impact on blood sugar?

WHITE ROLL (ENRICHED WHEAT FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, CONTAINS 2% OR LESS OF EACH OF: YEAST, SUGAR, SALT, MALTED BARLEY EXTRACT, WHEAT GLUTEN, VEGETABLE OIL [CANOLA OIL OR SOYBEAN OIL], FUMARIC ACID, PRESERVATIVES [CALCIUM PROPIONATE, PHOSPHORIC ACID, SODIUM PROPIONATE], WHEAT STARCH, DOUGH CONDITIONERS [MONO AND DIGLYCERIDES, ETHOXYLATED MONO AND DIGLYCERIDES, POLYSORBATE 60, ASCORBIC ACID, ENZYMES], LACTIC ACID, SODIUM DIACETATE, HYDROGENATED VEGETABLE OIL [SOYBEAN, PALM AND/OR COTTONSEED]), HAM WATER ADDED (FRESH HAM, WATER, SALT, SUGAR, DEXTROSE, LESS THAN 2% OF SODIUM PHOSPHATE, SODIUM ERYTHORBATE, SODIUM NITRITE), GREEN LEAF LETTUCE, PROVOLONE CHEESE (PASTEURIZED WHOLE MILK, CHEESE CULTURES, SALT AND ENZYMES), GENOA SALAMI (PORK, BEEF, SALT, DEXTROSE, LACTIC ACID STARTER CULTURE, SUGAR, SPICE, FLAVORING, SODIUM NITRITE, BHA, BHT, CITRIC ACID), PEPPERONI (PORK, BEEF, SALT, CONTAINS 2% OR LESS OF DEXTROSE, FLAVORINGS, LACTIC ACID STARTER CULTURE, OLEORESIN OF PAPRIKA, VITAMIN C [SODIUM ASCORBATE], SODIUM NITRITE, SPICES, BHA, BHT, CITRIC ACID), ROASTED RED PEPPERS (RED PEPPER, WATER, SALT, CITRIC ACID, AND CALCIUM CHLORIDE).