Which food has less impact on blood sugar?

WHITE CAKE MIX (SUGAR, ENRICHED WHEAT FLOUR BLEACHED (FLOUR, NIACIN, IRON, THIAMINE MONONITRATE. RIBOFLAVIN, FOLIC ACID), PALM OIL, EGG WHITES, EGG YOLKS, CONTAINS 2% OR LESS OF: CELLULOSE GUM, EGGS, FOOD STARCH-MODIFIED, GUAR GUM, LEAVENING (BAKING SODA, MONOCALCIUM PHOSPHATE, SODIUM ALUMINUM PHOSPHATE), MONO- AND DIGLYCERIDES, NATURAL AND ARTIFICIAL FLAVOR, NONFAT MILK, POLYSORBATE 60, PRESERVATIVE (CALCIUM ACETATE), PROPYLENE GLYCOL MONO- AND DIESTERS OF FATIY ACIDS, SALT, SODIUM STEAROYL LACT YLATE, SORBITAN MONOSTEARATE, SOY LECITHIN, SOYBEAN OIL, TETRASODIUM PYROPHOSPHATE, XANTHAN GUM), GREAM CHEESE ICING (SUGAR, CREAM CHEESE [PASTEURIZED MILK AND CREAM, CHEESE CULTURE, SALT, STABILIZER [CAROB BEAN GUM, XANTHAN GUM, GUAR GUM)], VEGETABLE SHORT ENING [PALM OIL, CANOLA OIL, MONO-AND DIGLYCERIDES, POLYSORBATE 60], DEXTROSE, CONTAINS 2% OR LESS OF EACH OF THE FOLLOWING: CREAM CHEESE POWDER [CREAM CHEESE SOLIDS [CREAM, NONFAT MILK, SALT, SODIUM ALGINATE, LACTIC ACID), CORN SYRUP SOLIDS, SODIUM CASEINATE, NATURAL FLAVOR], CORN STARCH, SOYBEAN OIL, SALT, NATURAL FLAVOR, BENZOIC ACID [PRESERVATIVE], POLYSORBATE 60, PROPYL GALLATE [ANTIOXIDANT], BETA CAROTENE [COLOR]), BUTTERCREAM BASE (SUGAR, VEGETABLE SHORTENING [PALM OIL, CANOLA OIL, MONO- AND DIGLYCERIDES, POLYSORBATE 60], CONTAINS 2% OR LESS OF EACH OF THE FOLLOWING: NATURAL AND ARTIFICIAL FLAVORS, SALT, CORN STARCH, ARTIFICIAL COLOR, GUAR GUM, LOCUST BEAN GUM), WATER, GLUCOSE SIRUP, SUGAR, WATER, RASPBERRY PUREE 3%, THICKENER: PECTIN, MODIFIED STARCH, PH CONTROL AGENTS: CITRIC ACID AND SODIUM CITRATE, STABILIZER: CALCIUM CHLORIDE, COLORS: CARMINE AND BETA-CAROTENE, ARTIFICIAL FLAVORS, PRESERVATIVE POTASSIUM SORBATE, RASPBERRY FILLING (SUGAR, RASPBERRY PUREE, WATER, CORN SYRUP, MODIFIED FOOD STARCH (CORN), CONTAINS 2% OR LESS OF EACH OF THE FOLLOWING: GELLAN GUM, CITRIC ACID, POTASSIUM SORBATE (PRESERVATIVE), CALCIUM LACTATE, RED 40, BLUE 1). CHOCOLATE CAKE MIX (SUGAR, ENRICHED WHEAT FLOUR BLEACHED (FLOUR, NIACIN, IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), COCOA PROCESSED WITH ALKALI, PALM OIL, EGG WHITES, SOYBEAN OIL, EGG YOLKS, LEAVENING (BAKING SODA, SODIUM ALUMINUM PHOSPHATE, MONOCALCIUM PHOSPHATE), CONTAINS 2% OR LESS OF CARAMEL COLOR CELLULOSE GUM, DEFATTED SOY FLOUR, DEXTROSE, FOOD