Which food has less impact on blood sugar?

MARBLE CAKE: SUGAR, BLEACHED ENRICHED FLOUR (WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), VEGETABLE SHORTENING (PALM OIL, SOYBEAN OIL, PROPYLENE GLYCOL MONO- AND DIESTERS OF FATS AND FATTY ACIDS, MONO- AND DIGLYCERIDES, SOY LECITHIN), WATER, NONFAT MILK, EGGS, PALM OIL, SOYBEAN OIL, FOOD STARCH - MODIFIED, COCOA PROCESSED WITH ALKALI. CONTAINS 2% OR LESS OF EACH OF THE FOLLOWING: CELLULOSE GUM, DEXTROSE, EGG YOLKS, EMULSIFIERS (MONO- AND DIGLYCERIDES, PROPYLENE GLYCOL MONO- AND DIESTERS OF FATS AND FATTY ACIDS, SODIUM STEAROYL LACTYLATE, SOY LECITHIN, CITRIC ACID [PRESERVATIVE]), GUAR GUM, MONO- AND DIGLYCERIDES, MONOCALCIUM PHOSPHATE, NATURAL AND ARTIFICIAL FLAVOR, POLYSORBATE 60, SALT, SODIUM ACID PYROPHOSPHATE, SODIUM ALUMINUM PHOSPHATE, SODIUM ALUMINIUM PHOSPHATE ACIDIC, SODIUM BICARBONATE, SODIUM STEAROYL LACTYLATE, SOY FLOUR, SOY LECITHIN, WHEAT STARCH, YELLOW 5, YELLOW 6, XANTHAN GUM. BUTTERCREME ICING: SUGAR, VEGETABLE SHORTENING (PALM OIL, CANOLA OIL, MONO- AND DIGLYCERIDES, POLYSORBATE 60), WATER. CONTAINS LESS THAN 2% OF: CORN STARCH, CORN SYRUP, GUAR GUM, HIGH FRUCTOSE CORN SYRUP, NATURAL AND ARTIFICIAL FLAVOR, PHOSPHORIC ACID, POLYSORBATE 60, POTASSIUM SORBATE (PRESERVATIVE), YELLOW 5, YELLOW 6, SALT, SODIUM BENZOATE (PRESERVATIVE). WHITE CHOCOLATE BALLOONS: SUGAR, COCOA BUTTER, WHOLE MILK POWDER, SPIRULINA COLOR, PAPRIKA OLEORESIN COLOR, CARROT OIL COLOR, TURMERIC OLEORESIN COLOR, NONFAT DRY MILK, SOY LECITHIN, NATURAL VANILLA EXTRACT.