Which food has less impact on blood sugar?

SUGAR, ENRICHED FLOUR BLEACHED (WHEAT FLOUR, NIACIN, IRON, THIAMIN MONONITRATE, RIBOFLAVIN, FOLIC ACID), EGGS, BUTTER, WATER, COCOA PROCESSED WITH ALKALI, NONFAT MILK, VEGETABLE OIL (PARTIALLY HYDROGENATED SOY AND COTTONSEED), RED VELVET CAKE MIX, SWEETENED CONDENSED MILK, CHOCOLATE, COCOA BUTTER, MILK FAT, VANILLA, CREAM CHEESE, NONFAT DRY MILK, MARGARINE, SALT. CONTAINS 2% OR LESS OF: NATURAL AND ARTIFICIAL FLAVOR, VANILLIN, SOY LECITHIN, LEAVENING (BAKING SODA, SODIUM ALUMINUM PHOSPHATE), MODIFIED WHEY, GUAR GUM, CELLULOSE GUM, XANTHAN GUM, MODIFIED TAPIOCA STARCH, CAROB POWDER, PROPYLENE GLYCOL MONO AND DIESTERS OF FATTY ACIDS, DEXTROSE, SORBITAN MONOSTEARATE, MALTODEXTRIN, POLYSORBATE 60 TETRASODIUM PYROPHOSPHATE, CALCIUM ACETATE, MONO AND DIGLYCERIDES, RED COLOR #40, CORNSTARCH, FOOD STARCH-MODIFIED, SODIUM STEAROYL LACTYLATE, VITAL WHEAT GLUTEN, BENZOIC ACID, GLUCONODELTA-LACTONE, HIGH FRUCTOSE CORN SYRUP, CITRIC ACID, POTASSIUM SORBATE (PRESERVATIVE), SODIUM BENZOATE, VITAMIN A PALMITATE, COLORED WITH BETA CAROTENE.