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 & ARTIFICIAL FLAVOR, BETA-CAROTENE (COLOR), VITAMIN A PALMITATE], SUGAR, CONTAINS LESS THAN 2% OF EACH OF THE FOLLOWING: YEAST, SALT, WHEY, MODIFIED CORN STARCH, CALCIUM PROPIONATE [PRESERVATIVE], NATURAL & ARTIFICAL FLAVOR [DEXTROSE, SUGAR, MALTODEXTRIN, GUM ARABIC, MEDIUM CHAIN TRIGLYCERIDES], DOUGH CONDITIONER [WHEAT FLOUR, ASCOBIC ACID, ENZYMES]), COOKED SAUSAGE PATTY (PORK, WATER, CONTAINS 2 % OR LESS OF: SALT, SUGAR, SODIUM PHOSPHATE, SPICE, DEXTROSE, FLAVORING, BHA, PROPYL GALLATE, CITRIC ACID, CARAMEL COLOR), COOKED EGG PATTY (WHOLE EGGS, NON-FAT MILK, CONTAINS LESS THAN 2% OF THE FOLLOWING: MODIFIED FOOD STARCH, CORN OIL, SALT, XANTHAN GUM, BUTTER FLAVOR, CITRIC ACID, PEPPER), YELLOW PROCESS AMERICAN CHEESE FOOD SLICE (AMERICAN CHEESE [MILK, SALT, CHEESE CULTURES, ENZYMES], WATER, NON-FAT DRY MILK, WHEY, CREAM, SODIUM CITRATE, SALT, SORBIC ACID [PRESERVATIVE], SOY LECITHIN [ANTI-STICKING AGENT], APO-CAROTENAL [COLOR]).