Which food has less impact on blood sugar?

ENRICHED WHEAT FLOUR (WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), MARGARINE (PALM OIL, WATER, SALT, VEGETABLE MONO- AND DIGLYCERIDES, SOY LECITHIN, PRESERVATIVES {SODIUM BENZOATE, CITRIC ACID}, ARTIFICIAL FLAVOR, BETA-CAROTENE {COLOR}, VITAMIN A PALMITATE), PALM OIL SHORTENING, SUGAR, PALM KERNEL AND HYDROGENATED PALM OIL, NATURAL COCOA, COCOA PROCESSED WITH ALKALI, CONFECTIONARY SUGAR (SUGAR, CORN STARCH), EGG WHITES, CORN SYRUP, HIGH FRUCTOSE CORN SYRUP, NATURAL & ARTIFICIAL FLAVORS (CONTAINS MILK), APPLE JUICE (FROM CONCENTRATE), WHEY POWDER (MILK), SALT, SOY LECITHIN AS AN EMULSIFIER, EGGS, DEXTROSE, INVERT SUGAR, PARTIALLY HYDROGENATED PALM KERNEL OIL, CINNAMON, CLOVES, LEAVENING MIX (SODIUM ACID PYROPHOSPHATE, SODIUM BICARBONATE, CORN STARCH AND MONOCALCIUM PHOSPHATE), HONEY, PECTIN, CITRIC ACID, MAGNESIUM STEARATE, CHOCOLATE LIQUOR, COCOA BUTTER YELLOW 5, YELLOW 6, RED 3, RED 40, BLUE 1, BLUE 2, SORBITAN TRISTEARATE, CASSAVA STARCH, CORN SYRUP SOLIDS, CONFECTIONERS GLAZE, NONFAT DRY MILK SOLIDS, ARTIFICIAL COLOR (TITANIUM DIOXIDE), ANHYDROUS MILKFAT, XANTHAM GUM, COCONUT, CARNAUBA WAX, POTASSIUM BENZOATE, SODIUM PROPIONATE AND SODIUM BENZOATE USED AS PRESERVATIVES.