Which food has less impact on blood sugar?

SUGAR, BROWNIE MIX (SUGAR, ENRICHED WHEAT FLOUR BLEACHED [FLOUR, NIACIN, IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], PALM OIL, COCOA PROCESSED WITH ALKALI, CORN SYRUP SOLIDS, SOYBEAN OIL, CONTAINS 2% OR LESS OF: ARTIFICIAL FLAVOR, CARAMEL COLOR, CORNSTARCH, EGG WHITES, LEAVENING [BAKING SODA, SODIUM ALUMINUM PHOSPHATE], NONFAT MILK, RED 40, SALT, SOY LECITHIN, SULFITES), CREAM CHEESE (PASTEURIZED MILK & CREAM, CHEESE CULTURE, SALT, GUAR GUM, CAROB BEAN GUM, XANTHAN GUM), OREO BITS (UNBLEACHED ENRICHED FLOUR [WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVON, FOLIC ACID], SUGAR, PALM AND/OR CANOLA OIL, COCOA PROCESSED WITH ALKALI, HIGH FRUCTOSE CORN SYRUP, LEAVENING [BAKING SODA AND/OR CALCIUM PHOSPHATE], SALT, SOY LECITHIN, CHOCOLATE, ARTIFICIAL FLAVOR), EGGS, WATER, MARGARINE (SOYBEAN OIL, HYDROGENATED SOYBEAN OIL, WATER, MONO & DIGLYCERIDES, SOY LECITHIN, SODIUM BENZOATE [PRESERVATIVE], ARTIFICIAL FLAVOR, BETA CAROTENE [COLOR], VITAMIN A PALMITATE), BUTTER BLEND MARGARINE (SOYBEAN OIL PALM OIL, WATER, BUTTER [COLOR], VITAMIN A PALMITATATE), BUTTER BLEND MARGARINE (SOYBEAN OIL, PALM OIL, WATER, BUTTER [CREAM, SALT], SALT, NONFAT DRY MILK SOLIDS, SODIUM BENZOATE [PRESERVATIVE], SOY LECITHIN, ARTIFICIAL FLAVOR, VITAMIN A PALMITATE ADDED, BETA CAROTENE [COLOR]) CONTAINS 2% OR LESS OF: CORNSTARCH, VANILLIN (AN ARTIFICIAL FLAVOR), PRESERVATIVE (PROPYLENE GLYCOL, SODIUM BENZOATE, METHYL HYDROXYBENZOATE, PROPYL. HYDROXYBENZOATE, CITRIC ACID).