Which food has less impact on blood sugar?

CROISSANT (ENRICHED FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], WATER, MARGARINE [PALM OIL, WATER, SOYBEAN OIL, SUGAR, SOY LECITHIN, MONO- AND DIGLYCERIDES, POTASSIUM SORBATE {PRESERVATIVE}, CITRIC ACID {PRESERVATIVE}, NATURAL FLAVOR, BETA-CAROTENE {COLOR}, VITAMIN A PALMITATE], SUGAR, YEAST, CONTAINS 2% OR LESS OF THE FOLLOWING: WHEY, SALT, MODIFIED CORN STARCH, CALCIUM PROPIONATE [PRESERVATIVE], NATURAL AND ARTIFICIAL FLAVORS, CALCIUM SULFATE, ASCORBIC ACID, ENZYMES), FULLY COOKED PORK & CHICKEN SAUSAGE PATTY (PORK, MECHANICALLY SEPARATED CHICKEN, WATER, SOY PROTEIN CONCENTRATE, CONTAINS LESS THAN 2% OF THE FOLLOWING: SALT, SPICES, DEXTROSE, NATURAL FLAVORS, MALTODEXTRIN, BHA, BHT, PORK STOCK, SODIUM PHOSPHATES, CARAMEL COLOR), FULLY COOKED SCRAMBLED EGG PATTY (WHOLE EGGS, WHEY, SOYBEAN OIL, NONFAT MILK, CONTAINS 2% OR LESS OF THE FOLLOWING: FOOD STARCH-MODIFIED, SALT, XANTHAN GUM, CITRIC ACID, NATURAL BUTTER FLAVOR), PASTEURIZED PROCESSED AMERICAN CHEESE (AMERICAN CHEESE [MILK, SALT, CHEESE CULTURES, ENZYMES], WATER, NONFAT DRY MILK, WHEY, CREAM, SODIUM CITRATE, SALT, SORBIC ACID [PRESERVATIVE], SUNFLOWER LECITHIN [ANTI-STICKING AGENT], SOY LECITHIN [ANTI-STICKING AGENT], APO CAROTENAL [COLOR]).