Which food has less impact on blood sugar?

CAKE-SUGAR, ENRICHED BLEACHED FLOUR (BLEACHED WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMIN MONONITRATE, RIBOFLAVIN, FOLIC ACID), WATER, SOYBEAN OIL, EGGS, EGG WHITES, MODIFIED CORN STARCH. CONTAINS 2% OR LESS OF NONFAT MILK, SALT, LEAVENING (SODIUM ACID PYROPHOSPHATE, SODIUM BICARBONATE, MONOCALCIUM PHOSPHATE), VITAL WHEAT GLUTEN, SORBITAN MONOSTEARATE, MONO- & DIGLYCERIDES, POLYSORBATE 60, SODIUM STEAROYL LACTYLATE, DEXTROSE, ARTIFICIAL & NATURAL FLAVORS, SOY LECITHIN, WHITE ICING- SUGAR, VEGETABLE SHORTENING (INTERESTERIFIED SOYBEAN OIL, SOYBEAN OIL, HYDROGENATED COTTONSEED OIL, MONO-AND DIGLYCERIDES, POLYSORBATE 60), CORN SYRUP, WATER. CONTAINS LESS THAN 2% OF SALT, CITRIC ACID, CORNSTARCH, NATURAL AND ARTIFICIAL FLAVOR, DEXTROSE, TITANIUM DIOXIDE (FOR COLOR), POTASSIUM SORBATE (PRESERVATIVE). CHOCOLATE ICING ALSO CONTAINS-COCOA PROCESSED WITH ALKALI, CARAMEL COLOR, POLYSORBATE 80. COLORED ICING ALSO CONTAINS- SHORTENING [PALM OIL, CANOLA AND/OR SOYBEAN OIL, MONO AND DIGLYCERIDES, POLYSORBATE 60, TBHQ (PRESERVATIVES)]. CONTAINS LESS THAN 2% OF HIGH FRUCTOSE CORN SYRUP, GUAR GUM, PHOSPHORIC ACID, SODIUM BENZOATE (PRESERVATIVE), BLUE 1, YELLOW 5, YELLOW 6, RED 40, RED 40 LAKE RED 3, BLUE 2 LAKE, YELLOW 6 LAKE, NATURAL PEPPERMINT OIL. PEPPERMINT CANDY CANE SHAPES-SUGAR, RICE FLOUR, HYDROGENATED VEGETABLE OIL (COTTONSEED AND/OR SOYBEAN), CORN STARCH, NATURAL AND ARTIFICIAL FLAVOR, CELLULOSE GUM, RED 40 LAKE, MONO AND DIGLYCERIDES, CARRAGEENAN, TITANIUM DIOXIDE (COLOR), POLYSORBATE 60.