Which food has less impact on blood sugar?

TOMATOES (TOMATO PUREE, WATER), WATER, ENRICHED WHEAT FLOUR (WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE [VITAMIN B1], RIBOFLAVIN [VITAMIN B2], FOLIC ACID), HIGH FRUCTOSE CORN SYRUP, CRACKERMEAL (BLEACHED WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), PEPPERONI (PORK AND BEEF, SALT, CONTAINS 2% OR LESS OF: DEXTROSE, FLAVORINGS, LACTIC ACID STARTER CULTURE, OLEORESIN PAPRIKA, SODIUM NITRITE AND BHA, BHT, CITRIC ACID [TO PROTECT FLAVOR]), LESS THAN 2% OF: PASTEURIZED PROCESSED CHEESE (CHEDDAR AND ENZYME MODIFIED CHEDDAR [MILK, CULTURES, SALT, ENZYMES], WATER, MILKFAT, SODIUM PHOSPHATE, SALT, VITAMIN A PALMITATE AND APO-CAROTENAL [COLORS]), SALT, MODIFIED CORN STARCH, DEHYDRATED ONION, CHEESE FLAVOR (GRANULAR AND PARMESAN CHEESE [MILK, CULTURES, SALT, ENZYMES], WATER, SALT, LACTIC ACID, CITRIC ACID), VITAL WHEAT GLUTEN, SOYBEAN OIL, DEHYDRATED GARLIC, SOY PROTEIN CONCENTRATE, SPICES, MEDIUM CHAIN TRIGLYCERIDES, FLAVORINGS (CONTAINS SMOKE FLAVORING AND LIPOLYZED BUTTERFAT), CITRIC ACID, OLEORESIN PAPRIKA, FLAVORINGS (INCLUDES LIPOLYZED BUTTERFAT), ACETIC ACID, SOY LECITHIN. CONTAINS: MILK, SOY, WHEAT