Which food has less impact on blood sugar?

GRINDER ROLL [ENRICHED FLOUR (WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMIN MONONITRATE, RIBOFLAVIN, FOLIC ACID), WATER, WHEAT GLUTEN, SUGAR, YEAST, SOYBEAN OIL, SALT, WHEAT FLOUR, GUAR GUM, WHOLE MALTED BARLEY FLOUR, DATCIN, MONOGLYCERIDES, CALCIUM PROPIONATE (A PRESERVATIVE), CALCIUM SULFATE, ENZYMES, ASCORBIC ACID (DOUGH CONDITIONER)], PROVOLONE CHEESE [PASTEURIZED MILK, CHEESE CULTURE, SALT, ENZYMES], HAM WITH NATURAL JUICES [HAM, WATER, SUGAR, SALT, POTASSIUM LACTATE, SODIUM DIACETATE, SODIUM ERYTHORBATE, SODIUM NITRITE, SODIUM PHOSPHATE, CARAMEL COLOR], GENOA SALAMI [PORK, SALT, DEXTROSE, FLAVORINGS, LACTIC ACID STARTER CULTURE, SODIUM NITRITE, SPICES, VITAMIN C(SODIUM ASCORBATE), WINE, BHA, BHT, CITRIC ACID], GREEN LEAF LETTUCE, RED ONION, ITALIAN DRESSING [WATER, DISTILLED VINEGAR, CORN SYRUP, SOYBEAN OIL, SALT, XANTHAN GUM, GARLIC, DEHYDRATED BELL PEPPERS (GREEN, RED), DEHYDRATED ONION, SODIUM BENZOATE AND POTASSIUM SORBATE AS PRESERVATIVES, SPICES, EXTRACTIVES OF ANNATTO AND TURMERIC (COLOR)]