Which food has less impact on blood sugar?

SOURDOUGH BREAD (UNBLEACHED ENRICHED FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), WATER, YEAST, SALTED BUTTER [PASTEURIZED CREAM, SALT], FULLY REFINED SOYBEAN OIL, WHEAT GLUTEN, WHEAT FLOUR, CANOLA OIL, MALTED BARLEY FLOUR [CONTAINS WHEAT], FUMARIC ACID, AND 2% OR LESS OF ACETIC ACID, LACTIC ACID, GRANULATED SUGAR, CALCIUM PROPIONATE [TO RETAIN FRESHNESS], DOUGH IMPROVER [MALTED WHEAT FLOUR, ENZYMES AND 2% OR LESS OF ASCORBIC ACID], CARAMEL COLOR, SALT, CALCIUM SULFATE, ENZYMES, SUNFLOWER LECITHIN), LOW-MOISTURE PART-SKIM MOZZARELLA CHEESE (PASTEURIZED PART-SKIM MILK, CHEESE CULTURES, SALT, NATAMYCIN [A NATURAL MOLD INHIBITOR], ENZYMES, SOY LECITHIN [NON-STICKING AGENT]), PEPPERONI (PORK, BEEF, SALT, SPICES, SUGAR, WATER, OLEORESIN OF PAPRIKA, NATURAL SMOKE FLAVORING, LACTIC ACID STARTER CULTURE, GARLIC POWDER, SODIUM NITRITE, ASCORBIC ACID, BHA, BHT, CITRIC ACID), FIVE PEPPER BLEND (RED BELL PEPPERS, GREEN BELL PEPPERS, PEPPERONCINI PEPPERS ([REEK PEPPERS, WATER, SALT, CITRIC ACID, ACETIC ACID, SODIUM METABISULFITE AND SODIUM BENZOATE AS PRESERVATIVES] SOYBEAN OIL, JALAPENO, PEPPERS, SERRANO PEPPERS, WATER, VINEGAR, SALT, GARLIC POWDER, SPICES, 1/10/OF 1% SODIUM BENZOATE, CALCIUM CHLORIDE AND POTASSIUM SORBATE AS PRESERVATIVES), HARD SALAMI WITH PEPPERS (PORK, BEEF, SALT, DEXTROSE, WATER, SPICE, NATURAL SMOKE FLAVOR, LACTIC ACID STARTER CULTURE, GARLIC POWDER, SODIUM NITRITE, BHA, BHT, CITRIC ACID.).