Which food has less impact on blood sugar?

CHICKEN SALAD (WHITE CHICKEN MEAT, CELERY, MAYONNAISE [VEGETABLE OIL (SOYBEAN, CANOLA), EGG YOLK, WATER, CORN SYRUP, VINEGAR, CONTAINS LESS THAN 2% OF: SALT, SPICES, CALCIUM DISODIUM EDTA TO PROTECT FLAVOR], GREEN ONION, SPICY BROWN MUSTARD [WATER, MUSTARD SEEDS, SALT, WHITE WINE, CITRIC ACID, VINEGAR, NATURAL FLAVORS, POTASSIUM METABISULFATE (AS PRESERVATIVE)], CROISSANT (ENRICHED FLOUR (WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FLOIC ACID), WATR, MARGARINE [PALM OIL, WATER, SOYBEAN OIL, SUGAR, SOY LECITHIN, MONO AND DIGLYCERIDES, POTASSIUM SORBATE PRESERVATIVE, CITRIC ACID PRESERVATIVE, NATURAL AND ARTIFICIAL FLAVOR, BETA-CAROTENE COLOR, VITAMIN A PALMITATE], CONTAINS LESS THAN 2% OF EACH OF THE FOLLOWING: YEAST, SALT, WHEY, CALCIUM PROPIONATE PRESERVATIVE, CALCIUM SULFATE, WHEAT FLOUR, ENZYMES, ASCORBIC ACID ADDED AS A DOUGH CONDITIONER, ACACIA (GUM ARABIC), CALCIUM PHOSPHATE, HIGH OLEIC CANOLA OIL, CAPRIC ACID AND CAPRYLIC ACID TRIGLYCERIDE BLEND)