Which food has less impact on blood sugar?

BROWNIE BASE (SUGAR, BLEACHED ENRICHED FLOUR WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, ENZYME, FOLIC ACID, PALM OIL, SOYBEAN OIL, COCOA PROCESSED WITH ALKALI), COM SYRUP SOLIDS, CONTAINS 2% OR LESS OF THE FOLLOWING: EGG WHITES, SALT, NATURAL AND ARTIFICIAL FLAVOR, NONFAT DRY MILK, SOY LECITHIN, DEFATTED SOY FLOUR, COMSTARCH, CARAMEL COLOR, LEAVENING (SODIUM BICARBONATE, SODIUM ALUMINUM PHOSPHATEL, RED 40), FUDGE ICING (SUGAR, VEGETABLE SHORTENING PALM OIL, HYDROGENATED COTTONSEED OIL, WATER, HIGH FRUCTOSE COM SYRUP, COM SYRUP, COCCA, COCOA PROCESSED WITH ALKALI, SOYBEAN OIL, CONTAINS 2% OR LESS OF EACH OF THE FOLLOWING: MONO- AND DIGLYCERIDES, POLYSORBATE 60, SALT, SOY LECITHIN, POTASSIUM SORBATE PRESERVATIVE), CITRIC ACID, NATURAL AND ARTIFICIAL FLAVOR), WATER, WHITE ICING (SUGAR, WATER, COM SYRUP, PALM OIL, HIGH OLEIC SUNFLOWER AND/OR CANOLA OIL, CONTAINS 2% OR LESS OF: HYDROGENATED COTTONSEED OIL, INVERT SUGAR, MONOAND DIGLYCERIDES, NATURAL AND ARTIFICIAL FLAVOR, POLYSORBATE 60, PRESERVATIVES (SODIUM PROPIONATE, SORBIC ACID, SALT, SOY LECITHIN, SOYBEAN OIL, TITANIUM DIOXIDE (COLOR), CORN SYRUP, PASTEURIZED CREAM, NATURAL FLAVORINGS, RED COLOR (WATER, HIGH FRUCTOSE COM SYRUP, GLYCERINE, SUGAR, RED 40, MODIFIED FOOD STARCH, RED 3, YELLOW 5, CARRAGEENAN, POTASSIUM SORBATE AND SODIUM BENZOATE [PRESERVATIVES], XANTHAN GUM, CITRIC ACID),