Which food has less impact on blood sugar?

CROISSANT FLATBREAD: FLOUR (WHEAT, MALTED BARLEY), WATER, SOYBEAN OIL, VEGETABLE SHORTENING (PALM OIL, SOY LECITHIN, ARTIFICIAL BUTTER FLAVOR, BETA CAROTENE), YEAST, SUGAR, SALT, LEAVENING (SODIUM BICARBONATE, MONOCALCIUM PHOSPHATE MONOHYDRATE, DICALCIUM PHOSPHATE DIHYDRATE), DOUGH CONDITIONERS (GUAR GUM, DIACETYL TARTARIC ACID ESTER OF MONO-AND DIGLYCERIDES, DEXTROSE, ENZYMES), CALCIUM PROPIONATE (PRESERVATIVE), NATURAL AND ARTIFICIAL FLAVORS, SODIUM METABISULFITE, AND SOY LECITHIN. TOPPING: SMOKE HAM WATER ADDED (CURED WITH: WATER, SALT, CONTAINS 2% OR LESS OF: DEXTROSE, SUGAR, LEMON JUICE CONCENTRATE, SODIUM PHOSPHATES, VINEGAR, SODIUM LACTATE, SODIUM DIACETATE, SODIUM ERYTHORBATE, SODIUM NITRITE), WHOLE EGGS, WATER, PASTEURIZED MILK, ONION, GREEN PEPPERS, CONTAINS 2% OR LESS OF THE FOLLOWING: ANNATTO (VEGETABLE COLOR), AUTOLYZED YEAST EXTRACT, CHEESE CULTURE, CITRIC ACID, CORN STARCH, DEHYDRATED CHEDDAR CHEESE [(PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES), WHEY, SALT], DEHYDRATED CREAMER (SUNFLOWER OIL, CORN SYRUP SOLIDS, SODIUM CASEINATE, MONO AND DIGLYCERIDES, SOY LECITHIN), DEHYDRATED GARLIC, DEHYDRATED BUTTER FLAVOR [NATURAL FLAVOR, WHEY, SALT, CORN SYRUP SOLIDS, BUTTER, GUAR GUM, BUTTERMILK, NON-FAT DRY MILK, (ANNATTO AND TURMERIC)], DEHYDRATED ONION, DEHYDRATED PARMESAN & ROMANO CHEESE (WHOLE COW'S MILK, SALT, CULTURES, ENZYMES), DEHYDRATED WHEY, DIPOTASSIUM PHOSPHATE, ENZYMES, EXTRACTIVE OF PAPRIKA, LACTIC ACID (CONTAINS CALCIUM LACTATE), MODIFIED FOOD STARCH, NATAMYCIN (A NATURAL MOLD INHIBITOR), NONFAT DRY MILK, OLEORESIN TURMERIC, POTASSIUM CHLORIDE, POTATO STARCH AND POWDERED CELLULOSE (TO PREVENT CAKING), SALT, SKIM MILK, SOYBEAN OIL, XANTHAN GUM.