Which food has less impact on blood sugar?

PITA FOLD: ENRICHED WHEAT FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE (B1), RIBOFLAVIN (B2), FOLIC ACID], WATER, SOYBEAN OIL AND/OR CANOLA OIL, CONTAINS 2% OR LESS OF: YEAST, SALT, SUGAR, DOUGH CONDITIONER (CALCIUM SULFATE, GUAR GUM, MONO- AND DIGLYCERIDES, ENZYMES), BAKING POWDER (SODIUM ACID PYROPHOSPHATE, SODIUM BICARBONATE, MONOCALCIUM PHOSPHATE), NONFAT DRY MILK, CALCIUM PROPIONATE AND POTASSIUM SORBATE, CALCIUM ACETATE (PRESERVATIVES), YEAST NUTRIENTS (AMMONIUM SULFATE, ASCORBIC ACID), GYRO SLICES: BEEF, CEREAL BINDER (CORN FLOUR, WHEAT FLOUR AND RYE FLOUR), WATER, LAMB, CONTAINS 2% OR LESS OF: ONIONS, VEGETABLE PROTEIN PRODUCT [SOY PROTEIN CONCENTRATE, ZINC OXIDE, NIACINAMIDE, FERROUS SULFATE, COPPER GLUCONATE, VITAMIN A PALMITATE, CALCIUM PANTOTHENATE, THIAMINE MONONITRATE (B1), PYRIDOXINE HYDROCHLORIDE (B6), RIBOFLAVIN (B2), AND CYANOCOBALAMIN (B12)], SALT, SEASONINGS (SPICES, MONOSODIUM GLUTAMATE, DEHYDRATED GARLIC, MALTODEXTRIN), BREAD CRUMBS [ENRICHED WHEAT FLOUR (FLOUR, BARLEY MALT, NIACIN, IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID) SALT, YEAST, SUGAR, CALCIUM PROPIONATE (PRESERVATIVE)], LEMON JUICE CONCENTRATE, TZATZIKI SAUCE: GREEK YOGURT (PASTEURIZED GRADE A SKIM MILK, MILK PROTEIN CONCENTRATE, CREAM, PECTIN, ENZYMES, ACTIVE YOGURT CULTURES [S. THERMOPHILUS, L. BULGARICUS, L. ACIDOPHILUS, BIFIDUS AND L. CASEI]), CUCUMBER, LEMON JUICE, SOYBEAN OIL AND/OR CANOLA OIL, GARLIC PUREE (GARLIC, CITRIC ACID AND ASCORBIC ACID), STABILIZER (RICE FLOUR, SODIUM CITRATE, LOCUST BEAN GUM, FOOD STARCH), CONTAINS 2% OR LESS OF: SALT, CITRUS FIBER (CITRUS FLOUR, SUGAR), SPICES, XANTHAN GUM