Which food has less impact on blood sugar?

MASHED POTATOES (POTATOES, WHOLE MILK, BUTTER [SWEET CREAM {MILK}, SALT], SALT, POTASSIUM SORBATE [PRESERVATIVE], BLACK PEPPER), BONELESS SKINLESS CHICKEN BREASTS (BONELESS, SKINLESS CHICKEN BREAST FILLETS, CONTAINING UP TO 10% SOLUTION OF WATER, FOOD STARCH AND SALT), BREWPUB STYLE MUSTARD (SOYBEAN OIL, WATER, DISTILLED VINEGAR, SPICY BROWN MUSTARD [DISTILLED VINEGAR, WATER, MUSTARD SEED, SALT, TURMERIC, SPICES], BROWN SUGAR, MUSTARD SEED, EGG YOLK, SOY SAUCE [WATER, WHEAT, SOYBEANS, SALT, SODIUM BENZOATE {PRESERVATIVE}], BARLEY MALT POWDER [MALTED BARLEY AND CORN], CONTAINS LESS THAN 2% OF SALT, XANTHAN GUM, DRIED ONION, SPICE, NATURAL FLAVOR, LEMON JUICE CONCENTRATE, MUSTARD FLOUR, WHITE WINE, CITRIC ACID, FRUIT PECTIN, TARTARIC ACID, SUGAR, SODIUM BENZOATE AND SORBIC ACID [PRESERVATIVES], CALCIUM DISODIUM EDTA [TO PROTECT FLAVOR], MUSTARD OIL), SHREDDED WHITE CHEDDAR CHEESE (CHEDDAR CHEESE [PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES], POTATO STARCH [TO PREVENT CAKING), POWDERED CELLULOSE [TO PREVENT CAKING], NATAMYCIN [A NATURAL MOLD INHIBITOR]), PRETZEL CRUMBLE (ENRICHED WHEAT FLOUR [WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMIN MONONITRATE, RIBOFLAVIN, FOLIC ACID], SALT, VEGETABLE OIL [MAY CONTAIN ONE OR MORE OF THE FOLLOWING: CORN, CANOLA, SOYBEAN], ARTIFICIAL BUTTER FLAVOR, CORN SYRUP, YEAST; FLAVORING [MALTODEXTRIN, BUTTERMILK, SALT, DRIED GARLIC, MONOSODIUM GLUTAMATE, SPICES, DRIEDONION, LACTIC ACID, CALCIUM LACTATE, CITRIC ACID, CONTAINS LESS THAN 1% OF THE FOLLOWING: CALCIUM STEARATE, ARTIFICIAL FLAVOR, XANTHAN GUM, CARBOXYMETHYL-CELLULOSE GUM, GUARGUM, NATURAL FLAVOR]), ROASTED GARLIC & HERB BUTTER (BUTTER [CREAM, SALT], GARLIC, ONION POWDER, SUGAR, SALT, BLACK PEPPER, PARSLEY, CORN STARCH), PARSLEY.