Which food has less impact on blood sugar?

FLOUR TORTILLA (ENRICHED BLEACHED FLOUR [WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, SOYBEAN OIL. CONTAINS LESS THAN 2% OF EACH OF THE FOLLOWING: VEGETABLE SHORTENING [SOYBEAN OIL, MONO AND DIGLYCERIDES, TOCOPHEROL {VITAMIN E}, VITAMIN C PALMITATE], SALT, MONO AND DIGLYCERIDES, BAKING POWDER [SODIUM BICARBONATE, CORNSTARCH, SODIUM ALUMINUM SULFATE, CALCIUM SULFATE, MONOCALCIUM PHOSPHATE], CALCIUM PROPIONATE, WHEAT GLUTEN, FUMARIC ACID, GUAR GUM, XANTHAN GUM, MICROCRYSTALLINE CELLULOSE, L-CYSTEINE [DOUGH CONDITIONER]), FULLY COOKED SMOKED HAM, WATER ADDED, SMOKE FLAVORING ADDED (CURED WITH: WATER, DEXTROSE, SALT, CONTAINS 2% OR LESS OF POTASSIUM LACTATE, SMOKE FLAVORING, SODIUM DIACETATE, SODIUM ERYTHORBATE, SODIUM LACTATE, SODIUM NITRITE, SODIUM PHOSPHATES), SPINACH, SWISS CHEESE (PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES), MAYONNAISE (SOYBEAN OIL, WATER, EGGS, DISTILLED AND CIDER VINEGAR, SALT, SUGAR, LEMON JUICE, NATURAL FLAVORS, OLEORESIN PAPRIKA AND CALCIUM DISODIUM EDTA ADDED TO PROTECT FLAVOR), CREAM CHEESE (PASTEURIZED MILK AND CREAM, WHEY PROTEIN CONCENTRATE, CONTAINS LESS THAN 2% OF SALT, CAROB BEAN GUM, GUAR GUM, NATAMYCIN [A NATURAL MOLD INHIBITOR], VITAMIN A PALMITATE, CHEESE CULTURE), PREPARED MUSTARD (WATER, DISTILLED VINEGAR, NO. 1 MUSTARD SEED, SALT, TURMERIC, OLEORESIN PAPRIKA AND SPICES).