Which food has less impact on blood sugar?

RED SEEDLESS GRAPES, CELERY STICKS, NAAN BREAD (ENRICHED WHEAT FLOUR (WHEAT FLOUR, NIACIN, REDUCED IRON, ASCORBIC ACID ADDED AS A DOUGH CONDITIONER, THIAMINE MONONITRATE, RIBOFLAVIN, ENZYME, FOLIC ACID), WATER, BUTTERMILK (NONFAT MILK, DRY BUTTERMILK. BACTERIAL CULTURE), SOYBEAN OIL, MODIFIED WHEAT STARCH, CULTURED WHEAT FLOUR, SUGAR, SALT, GHEE (CLARIFIED BUTTER), DEXTROSE, ACACIA, LEAVENING (SODIUM ACID PYROPHOSPHATE, BAKING SODA), YEAST, MONO- AND DIGLYCERIDES, ENZYMES). FULLY COOKED DICED WHITE MEAT CHICKEN MINIMALLY PROCESSED, NO ARTIFICIAL (WHITE MEAT CHICKEN AND WATER. CONTAINS 2% OR LESS OF: FOOD STARCH, SALT, CHICKEN BROTH, SUGAR, SILICON DIOXIDE, CELERY, YEAST EXTRACT, COOKED CHICKEN, CHICKEN FAT, AND FLAVORS). TZATZIKI SAUCE (WATER, CUCUMBER, COCONUT OIL NONFAT DRY MILK, SOYBEAN OIL AND/OR CANOLA OIL, STABILIZER BLEND (SALT, GARLIC POWDER, SUGAR, POTASSIUM SORBATE, CREAM OF TARTAR). CONTAINS LESS THAN 2% OF VINEGAR, MODIFIED CORN STARCH, GUAR GUM, MONO AND DIGLYCERIDES. LOCUST BEAN GUM, CARRAGEENAN, LACTIC ACID, CITRIC ACID, NATURAL FLAVOR, CORN STARCH, LEMON JUICE CONCENTRATE, NATURAL FLAVOR, POTASSIUM SORBATE (PRESERVATIVE) XANTHAN GUM) RED BELL PEPPERS, FETA CHEESE (PASTEURIZED MILK, SALT, CHEESE CULTURES, ENZYMES, POWDERED CELLULOSE ADDED AS AN ANTI-CAKING AGENT), DICED CELERY, LEMON JUICE, BLACK PEPPER, DILL WEED