Which food has less impact on blood sugar?

PIZZA SHELLS (ENRICHED WHEAT FLOUR (WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, AMYLASE, FOLIC ACID), WATER, CANOLA OIL, YEAST, CULTURED WHEAT STARCH, WHEAT GLUTEN, SALT, SPICE EXTRACT.), LOW-MOISTURE PART-SKIM MOZZARELLA CHEESE (PASTEURIZED PART-SKIM MILK, CHEESE CULTURES, SALT, ENZYMES, POWDERED CELLULOSE), PIZZA SAUCE (WATER, CRUSHED TOMATO, CANOLA OIL, SUGAR, SALT, CITRIC ACID, XANTHAN GUM, SPICES, GARLIC POWDER), UNCURED SMOKED PEPPERONI NO NITRATES OR NITRITES ADDED EXCEPT FOR THOSE NATURALLY OCCURING IN SEA SALT AND CULTURED CELERY EXTRACT (PORK, SEA SALT, CANE SUGAR, SPICE, PAPRIKA, CULTURED CELERY EXTRACT, PAPRIKA EXTRACT, GARLIC POWDER, CHERRY POWDER, RICE CONCENTRATE, SPICE EXTRACT, LACTIC ACID STARTER CULTURE).