Which food has less impact on blood sugar?

BROWNIE [SUGAR, ENRICHED FLOUR, BLEACHED (WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, IRON, THIAMIN MONONITRATE, RIBOFLAVIN, FOLIC ACID), COCOA PROCESSED WITH ALKALI, PARTIALLY HYDROGENATED SOYBEAN AND COTTONSEED OIL, SOYBEAN OIL, CORN SYRUP SOLIDS, EGG YOLK, EGG WHITE, SALT, BAKING SODA, ARTIFICIAL FLAVOR, NONFAT MILK, SOY FLOUR], CHOCOLATE ICING [SUGAR, VEGETABLE SHORTENING (PARTIALLY HYDROGENATED SOYBEAN AND PALM OILS, MONO AND DIGLYCERIDES, POLY SORBATE 60, SORBITAN, TRISTEARATE), WATER, CONTAINS LESS THAN 2% OF THE FOLLOWING: CORN SYRUP, SALT, NATURAL AND ARTIFICIAL FLAVORING, GUAR GUM, POTASSIUM SORBATE, SODIUM BENZOATE (TO PRESERVE FRESHNESS), CITRIC ACID], WATER, VANILLA ICING [SUGAR, WATER, CORN SYRUP, CONTAINS LESS THAN 2% OF AGAR, ARTIFICIAL FLAVOR, CITRIC ACID, COLOR ADDED, DEXTROSE, LOCUST BEAN GUM, MALTODEXTRIN, MONO AND DIGLYCERIDES, POTASSIUM SORBATE (PRESERVATIVE) SOY LECITHIN], SPRINKLES (SUGAR, PARTIALLY HYDROGENATED VEGETABLE OIL (COTTONSEED AND OR SOYBEAN), CORN STARCH, CONFECTIONER GLAZE, SOY LECITHIN, NATURAL AND ARTIFICIAL FLAVOR, ARTIFICIAL COLOR, DEXTRIN, FD&C RED #40, LAKE, SALT, CARNAUBA WAX, FD&C BLUE #1 LAKE, FD&C YELLOW #5 LAKE, FD&C YELLOW #6 LAKE, FD&C RED #3, FD&C BLUE #1, FD&C RED #40], ROYAL BLUE COLOR [WATER, SUGAR, FD & C COLORING (BLUE#1 AND RED #3, ) MODIFIED CORN STARCH, LOCUST BEAN GUM, CITRIC ACID, SODIUM BENZOATE AND POTASSIUM SORBATE (AS PRESERVATIVE)], LEMON YELLOW COLOR(WATER, SUGAR, FD & C COLORING (YELLOW #5, YELLOW #6)MODIFIED CORN STARCH, LOCUST BEAN GUM, CITRIC ACID, SODIUM BENZOATE AND POTASSIUM SORBATE (AS PRESERVATIVE)].