Which food has less impact on blood sugar?

GRILLED WHITE CHICKEN (GRILLED CHICKEN BREAST WITH RIB MEAT, WATER, CANOLA OIL AND EXTRA VIRGIN OLIVE OIL BLEND, LEMON JUICE, SODIUM TRIPOLYPHOSPHATE, SALT), TOMATO BASIL TORTILLA (ENRICHED BLEACHED WHEAT FLOUR [FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, VEGETABLE SHORTENING [SOYBEAN OIL, VEGETABLE MONO & DIGLYCERIDES, TOCOPHEROLS (VITAMIN E) AND VITAMIN C PALMITATE (AS ANTIOXIDANTS)], TOMATO BASIL POWDER [DEXTROSE, SUGAR, TOMATO POWDER, ONION POWDER, DEHYDRATED PARSLEY, GARLIC POWDER, SPICES (INCLUDING BASIL), CITRIC ACID, ARTIFICIAL FLAVOR, EXTRACTIVES OF PAPRIKA, RED 40 LAKE, YELLOW 5 LAKE, NOT MORE THAN 2% SILICON DIOXIDE TO PREVENT CAKING. CONTAINS LESS THAN 2% OF EACH OF THE FOLLOWING: CALCIUM PROPIONATE, YEAST, SORBIC ACID, LEAVENING [SODIUM BICARBONATE, SODIUM ACID PYROPHOSPHATE, CORN STARCH, MONOCALCIUM PHOSPHATE], ENZYME, FUMARIC ACID, GUAR GUM, CELLULOSE GUM, SODIUM METABISULFITE, MICROCRYSTALLINE CELLULOSE, DICALCIUM PHOSPHATE), LETTUCE, BUFFALO WING SAUCE (DISTILLED VINEGAR, AGED CAYENNE RED PEPPERS, SALT, WATER, CANOLA OIL, PAPRIKA, XANTHAN GUM, NATURAL BUTTER TYPE FLAVOR AND GARLIC POWDER), CREAM CHEESE (PASTEURIZED CULTURED MILK AND CREAM, SALT, STABILIZERS [XANTHAN AND/OR CAROB BEAN, AND/OR GUAR GUM]), BLUE CHEESE (MILK, CHEESE CULTURES, SALT, ENZYMES, POWDERED CELLULOSE TO PREVENT CAKING, NATAMYCIN TO PROTECT FLAVOR), CELERY.