Which food has less impact on blood sugar?

SUGAR, BLEACHED ENRICHED WHEAT FLOUR (WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), VEGETABLE SHORTENING (PALM OIL, MONO AND DIGLYCERIDES, POLYSORBATE 60), COCOA (PROCESSED WITH ALKALI), CORN SYRUP SOLIDS, CONTAINS 2% OR LESS OF EACH OF THE FOLLOWING: DRIED EGG WHITES, CORN STARCH SALT, NATURAL AND ARTIFICIAL FLAVOR (MILK), LEAVENING (SODIUM BICARBONATE SODIUM ALUMINUM PHOSPHATE), CARAMEL COLOR, RED 40, SOY FLOUR., CORN SYRUP, SWEETENED CONDENSED MILK (MILK, SUGAR), HIGH FRUCTOSE CORN SYRUP, VEGETABLE OIL (CANOLA OIL, HYDROGENATED COCONUT OIL, PALM KERNEL OIL, PALM OIL, SOYBEAN OIL), CORN SYRUP SOLIDS, CONTAINS LESS THAN 2% OF: BUTTER (CREAM NATURAL FLAVORS), CARNAUBA WAX, LACTYLIC ESTERS OF FATTY ACIDS, MODIFIED FOOD STARCH, MONO AND DIGLYCERIDES, NATURAL AND ARTIFICIAL FLAVOR, POLYSORBATE 60, POTASSIUM SORBATE (PRESERVATIVE), PROPYLENE GLYCOL MONO & DIESTERS OF FATS AND FATTY ACIDS, SALT, SORBITAN MONO - STEARATE, SOY LECITHIN, WATER, WATER SUGAR, WATER PALM OIL, CORN SYRUP, COCOA (PROCESSED WITH ALKALI), CONTAINS 2% OR LESS OF THE FOLLOWING: MONO - AND DIGLYCERIDES, SALT, SOY LECITHIN, CITRIC ACID, POTASSIUM SORBATE(PRESERVATIVE), ARTIFICIAL FLAVOR.