Which food has less impact on blood sugar?

PRETZEL BUN (ENRICHED WHEAT FLOUR (WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), WATER, PALM OIL, SUGAR, NONFAT MILK, YEAST, DOUGH CONDITIONER (WHEAT FLOUR, DIACETYL TARTARIC ACID ESTERS OF MONO-DIGLYCERIDES [DATEM], CONTAINS 2% OR LESS OF: SOYBEAN OIL, ENZYMES [WHEAT], ASCORBIC ACID [VITAMIN C], L-CYSTEINE HYDROCHLORIDE, AZODICARBONAMIDE [ADA]), SALT, DOUGH EXTENDER (WHEAT FLOUR, MONOGLYCERIDES, GUAR GUM, CORN SYRUP SOLIDS, CONTAINS 2% OR LESS OF: SILICON DIOXIDE [FLOW AID], SOYBEAN OIL, ENZYMES, CALCIUM SULFATE, SALT), CALCIUM PROPIONATE), HAM (WATER, MODIFIED FOOD STARCH, SALT, DEXTROSE, POTASSIUM LACTATE, SODIUM PHOSPHATE, SODIUM DIACETATE, SODIUM ERYTHORBATE, SODIUM NITRITE), CHEDDAR CHEESE (PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES, ANNATTO [COLOR]), HORSERADISH DIJON MAYONNAISE (DISTILLED WHITE VINEGAR, CORN SYRUP, SOYBEAN OIL, WATER, HORSERADISH, DIJON MUSTARD (WATER, MUSTARD SEED, VINEGAR, SALT, WHITE WINE, CITRIC ACID, TARTARIC ACID, SPICES)*, EGG YOLKS, MODIFIED CORNSTARCH*, SALT, APPLE JUICE CONCENTRATE*, ONIONS*, GARLIC*, WORCESTERSHIRE SAUCE CONCENTRATE (DISTILLED VINEGAR, MOLASSES, CORN SYRUP, WATER, SALT, CARAMEL COLOR, GARLIC POWDER, SUGAR, SPICES, TAMARIND, NATURAL FLAVOR, AMMONIA BISULFITES)*, SPICES, NATURAL FLAVOR, DEHYDRATED GARLIC*, VINEGAR, HIGH FRUCTOSE CORN SYRUP, SODIUM BENZOATE AND POTASSIUM SORBATE AS PRESERVATIVES*, ONION POWDER*, CALCIUM DISODIUM EDTA ADDED TO PROTECT FLAVOR.