Which food has less impact on blood sugar?

CRUST (ENRICHED UNBLEACHED WHEAT FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, ASCORBIC ACID ADDED AS A DOUGH CONDITIONER, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, WHOLE WHEAT FLOUR, SOYBEAN OIL, YEAST, NONFAT DRY MILK, SUGAR, CONTAINS LESS THAN 2% OF THE FOLLOWING: SALT, DRY SOURDOUGH OF RYE [WATER, FERMENTED RYE FLOUR, SALT], EXTRA VIRGIN OLIVE OIL, ENZYMES, WHEAT STARCH. MAY CONTAIN SOY AND SESAME), LOW MOISTURE PART SKIM MOZZARELLA CHEESE (PASTEURIZED PART SKIM MILK, CHEESE CULTURES, SALT, ENZYMES), SAUCE (TOMATOES, WATER, CONTAINS LESS THAN 2% OF THE FOLLOWING: SPICES, SUGAR, SALT, GARLIC, SUNFLOWER OIL), PEPPERONI (PORK, BEEF, SALT, CONTAINS 2% OR LESS OF SPICES, DEXTROSE, DEHYDRATED GARLIC, OLEORESIN OF PAPRIKA, LACTIC ACID STARTER CULTURE, NATURAL FLAVORINGS, SODIUM NITRITE, BHA, BHT, CITRIC ACID).