Which food has less impact on blood sugar?

PIZZA CRUST: FLOUR (BLEACHED WHEAT FLOUR, MALTED BARLEY FLOUR, POTASSIUM BROMATE), WATER, SHORTENING (BEEF FAT, SOYBEAN OIL, BHA, BHT AND CITRIC ACID), SALT: (YELLOW PRUSSIATE OF SODA, MAY ALSO CONTAIN TRICALCIUM PHOSPHATE, DEXTROSE, POTASSIUM IODIDE, SODIUM BICARBONATE), DOUGH CONDITIONER: (WHEY, (MILK), L-CYSTEINE HYDROCHLORIDE), YEAST (SACCHAROMYCES CEREVISIAE, SORBITAN MONSTEARATE, ASCORBIC ACID), SUGAR, CALCIUM PROPIONATE. SAUCE: [WATER, TOMATO PASTE (TOMATOES), SUGAR, SPICES (DEHYDRATED ONION, SALT, SPICES (BLACK PEPPER, BASIL), DEHYDRATED GARLIC, SOYBEAN OIL, SODIUM BENZOATE (2.63%))], PROVEL CHEESE: [CHEDDAR, SWISS, AND PROVOLONE CHEESE), (CULTURED PASTEURIZED MILK AND PART SKIM MILK, WATER, SODIUM PHOSPHATE, MILKFAT, SALT, CONTAINS LESS THAN 0.5% OF LACTIC ACID, SORBIC ACID AS A PRESERVATIVE, ENZYMES, SMOKE FLAVOR], SAUSAGE: (PORK, WATER, SALT, SPICES INCLUDING FENNEL SEED, BLACK PEPPER, DEHYDRATED GARLIC, SOYBEAN OIL, SILICON DIOXIDE, PAPRIKA, PARSLEY, BHA AND BHT), BACON: (CURED WITH; WATER, SALT, SUGAR, SODIUM PHOSPHATES, SODIUM ERYTHORBATE, SODIUM NITRITE) MAY CONTAIN SMOKE FLAVOR, MUSHROOMS: (WATER, SALT, CITRIC ACID, MAY CONTAIN ASCORBIC ACID ANTIOXIDNT, CALCIUM DISODIUM EDTA TO MAINTAIN COLOR), GREEN PEPPERS, ONIONS, OREGANO AND GRATED ROMANO CHEESE: (PASTEURIZED COW'S MILK, CHEESE CULTURES, SALT, ENZYMES), OREGANO, POWDERED CELLULOSE (ANTI-CAKING AGENT).