Which food has less impact on blood sugar?

BLAZING BUFFALO STYLE CHICKEN BREAST, CARAMEL COLOR ADDED (CHICKEN BREAST, WATER, CONTAINS 1.5% OR LESS OF SALT, SUGAR, SODIUM PHOSPHATE AND DEXTROSE. BROWNED IN COTTONSEED OIL. COATED WITH: CAYENNE RED PEPPER, VINEGAR, SALT, SPICE, PAPRIKA, RICE STARCH, GARLIC, CARAMEL COLOR), WHITE ROLL (ENRICHED WHEAT FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, CONTAINS 2% OR LESS OF EACH OF: YEAST, SUGAR, SALT, MALTED BARLEY EXTRACT, WHEAT GLUTEN, VEGETABLE OIL [CANOLA OIL OR SOYBEAN OIL], FUMARIC ACID, PRESERVATIVES [CALCIUM PROPIONATE, PHOSPHORIC ACID, SODIUM PROPIONATE], WHEAT STARCH, DOUGH CONDITIONERS [MONO AND DIGLYCERIDES, ETHOXYLATED MONO AND DIGLYCERIDES, POLYSORBATE 60, ASCORBIC ACID, ENZYMES], LACTIC ACID, SODIUM DIACETATE, HYDROGENATED VEGETABLE OIL [SOYBEAN, PALM AND/OR COTTONSEED]), GREEN LEAF LETTUCE, MONTEREY JACK CHEESE WITH JALAPENO PEPPERS (PASTEURIZED MILK, CHEESE CULTURES, JALAPENO PEPPERS, SALT, ENZYMES), BACON (CURED WITH WATER, SALT, SUGAR, NATURAL SMOKE FLAVORING, SODIUM PHOSPHATE, SODIUM ERYTHORBATE, SODIUM NITRITE).