Which food has less impact on blood sugar?

MILAN SALAMI (PORK, SALT AND LESS THAN 2% OF THE FOLLOWING: DEXTROSE, NATURAL FLAVORINGS, WINE, SODIUM ASCORBATE, LACTIC ACID STARTER CULTURE, SODIUM NITRITE, SODIUM NITRATE), PROVOLONE CHEESE (CULTURED PASTEURIZED MILK, SALT, ENZYMES), CASHEWS (CASHEWS, SEA SALT), WHOLE WHEAT CROSTINI (UNBLEACHED WHEAT FLOUR, (MALTED BARLEY FLOUR, NIACIN, ASCORBIC ACID, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, ENZYME, FOLIC ACID), WATER, WHEAT FLAKES, RYE MEAL, MID OLEIC SUNFLOWER OIL, WHEAT BRAN, FLAXSEEDS, CORN FLAKES, SUGAR, SALT, OAT FLAKES, RYE FLOUR, SOYA GRITS, MILLET SEEDS, YEAST, BLACKSTRAP MOLASSES, OLIVE OIL, SUNFLOWER KERNEL, VEGETABLE OIL (CANOLA AND/OR SOYBEAN ASCORBIC ACID, ENZYMES, DEXTROSE, WHEAT GLUTEN, SEA SALT, MALTED BARLEY FLOUR)