Which food has less impact on blood sugar?

ENRICHED BLEACHED WHEAT FLOUR [(FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), MALTED BARLEY FLOUR], MARGARINE [PALM OIL, WATER, SOYBEAN OIL, SALT, SOY LECITHIN, NATURAL FLAVOR, BETA-CAROTENE (COLOR), VITAMIN A PALMITATE], SUGAR, CREAM CHEESE FROSTING [SUGAR, MARGARINE (PALM OIL, WATER, SOYBEAN OIL, SALT, VEGETABLE MONO- AND DIGLYCERIDES, WHEY SOLIDS {MILK}, SOY LECITHIN, SODIUM BENZOATE {PRESERVATIVE}, ARTIFICIAL FLAVOR, VITAMIN A PALMITATE), CREAM CHEESE (PASTEURIZED MILK AND CREAM, CHEESE CULTURE, SALT, STABILIZERS {CAROB BEAN GUM, XANTHAN GUM, GUAR GUM}), WATER, CORN STARCH, CONTAINS 2% OR LESS OF THE FOLLOWING: CORN SYRUP SOLIDS, HYDROXYPROPYL METHYL CELLULOSE, NATURAL AND ARTIFICIAL FLAVOR, POTASSIUM SORBATE (PRESERVATIVE), SOYBEAN OIL, POLYSORBATE 60, LACTIC ACID, ARTIFICIAL COLOR], WATER, WHEAT FLOUR, EGGS, CONTAINS LESS THAN 2% OF CINNAMON, PALM OIL, SKIM MILK, YEAST, ENZYMES, ASCORBIC ACID, SALT, SUGARCANE MOLASSES, CALCIUM PROPIONATE [PRESERVATIVE], NATURAL AND ARTIFICIAL FLAVOR, BETA-CAROTENE [COLOR].