Which food has less impact on blood sugar?

CAKE: SUGAR BLEACHED ENRICHED FLOUR (WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), WATER, EGGS, SOY OIL, PUMPKIN, HIGH FRUCTOSE CORN SYRUP, EGG WHITES, NONFAT DRY MILK, MODIFIED CORN STARCH, WHEAT GLUTEN, BAKING SODA, SALT, MOLASSES, SODIUM ALUMINUM PHOSPHATE, SPICE, PROPYLENE GLYCOL ESTERS, CORN SYRUP, SORBITAN MONOSTEARATE, SODIUM STEAROYL LACTYLATE, POLYSORBATE 60, CELLULOSE GUM, MONOCALCIUM PHOSPHATE, XANTHAN GUM, ARTIFICIAL FLAVOR, GUAR GUM, MONO AND DIGLYCERIDES, SODIUM BENZOATE AND BENZOIC ACID (PRESERVATIVES), YELLOW 5, YELLOW 6, SOY LECITHIN, ICING-SUGAR, MARGARINE [PALM OIL, SOYBEAN OIL, WATER, SALT, WHEY (MILK), MONO AND DIGLYCERIDES, SOY LECITHIN, SODIUM BENZOATE (PRESERVATIVE), BETA CAROTENE (COLOR), ARTIFICIAL FLAVOR, VITAMIN A PALMITATE ADDED], HIGH FRUCTOSE CORN SYRUP, VEGETABLE SHORTENING (PALM OIL, CANOLA OIL AND/OR SOYBEAN OIL, MONO AND DIGLYCERIDES), MALTODEXTRIN, CREAM CHEESE POWDER [CREAM CHEESE SOLIDS (CREAM, NONFAT MILK, SALT, ALGINATE, LACTIC ACID), CORN SYRUP SOLIDS, SODIUM CASEINATE (MILK) NATURAL FLAVOR], CULTURED CREAM CHEESE [PASTEURIZED CULTURED MILK AND CREAM, SALT, STABILIZERS (XANTHAN LOCUST BEAN AND GUAR GUMS), CONTAINS LESS THAN 2% OF THE FOLLOWING: CORN STARCH, NATURAL AND ARTIFICIAL FLAVOR (MILK, SOY), CORN SYRUP SOLIDS, SODIUM CASEINATE (MILK), SOY OIL, SALT, GLUCONO DELTA-LACTONE, BENZOIC ACID (PRESERVATIVE) POLYSORBATE 60, LACTIC ACID, PROPYL GALLATE (ANTIOXIDANT), WHITE CHOCOLATE WITH PRINT-SUGAR, COCOA BUTTER, WHOLE MILK POWDER, LACTOSE (MILK), EMULSIFIERS (SOY LECITHIN, POLYGLYCEROL POLYRICINOLEATE), NATURAL VANILLA, HYDROGENATED PALM KERNEL OIL, COLORS: TITANIUM DIOXIDE, FD & C RED 40, BLUE 2, YELLOW 6, BLUE 1, YELLOW 5, COCONUT OIL, NONFAT MILK POWDER, PALM KERNEL OIL, MONOGLYCERIDES ARTIFICIAL VANILLA FLAVOR.