Which food has less impact on blood sugar?

FLATBREAD (ENRICHED FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, VITAL WHEAT GLUTEN, OAT FIBER, LIQUID BROWN SUGAR, SOY FLOUR, CONTAINS 2% OR LESS OF SOYBEAN OIL, EXTRA VIRGIN OLIVE OIL, PRUNE JUICE CONCENTRATE, SODIUM ACID PYROPHOSPHATE, RANCH FLAVOR [SUNFLOWER OIL, MEDIUM CHAIN TRIGLYCERIDES, SALT, ONION POWDER, GARLIC POWDER, SPICES, DISODIUM INOSINATE AND DISODIUM GUANYLATE, SOYBEAN OIL, FLAVOR], BAKING SODA, WHEAT PROTEIN ISOLATE, POTASSIUM SORBATE AND SODIUM PROPIONATE [PRESERVATIVES], YEAST, CELLULOSE GUM, FUMARIC ACID, SALT, GUAR GUM, CALCIUM SULFATE, CARRAGEENAN, XANTHAN GUM, MALTODEXTRIN, ANNATTO COLOR, ENZYMES), PASTEURIZED PROCESS AMERICAN CHEESE (CHEDDAR CHEESE [MILK, CHEESE CULTURE, SALT, ENZYMES, ANNATTO], WATER, CREAM, SODIUM PHOSPHATE, SODIUM CITRATE, SALT, SORBIC ACID [PRESERVATIVE], APO-CAROTENAL [COLOR]), SMOKED TURKEY BREAST (TURKEY BREAST, HONEY, SALT, SUGAR, WATER, DEXTROSE, LACTIC ACID STARTER CULTURE, SODIUM ASCORBATE, SODIUM NITRITE), BACON CHUNKED AND FORMED (CURED WITH WATER, SALT, SMOKE FLAVORING, SUGAR, SODIUM DIACETATE, DEXTROSE, SODIUM ERYTHORBATE, SODIUM NITRITE).