Which food has less impact on blood sugar?

CAKE: CREAM CHEESE (CULTURED PASTEURIZED MILK AND CREAM, SALT, GUAR GUM, LOCUST BEAN GUM, XANTHAN GUM), SUGAR, WATER, SKIM MILK, PALM OIL, SOUR CREAM (CULTURED MILK AND CREAM, ENZYMES), WHEY, SOYBEAN OIL, WHEAT FLOUR, GLUCOSE SYRUP, BROWN SUGAR, ENRICHED WHEAT FLOUR (WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), COCOA (ALKALIZED), EGG YOLKS, WHEY PROTEIN CONCENTRATE, EGGS, SEMISWEET CHOCOLATE CHIPS (SUGAR, CHOCOLATE LIQUOR, COCOA BUTTER, SOY LECITHIN, VANILLA EXTRACT), NATURAL AND ARTIFICIAL FLAVORS, MILK, EGG WHITES, FOOD STARCH-MODIFIED, STRAWBERRIES, SALT, MALTODEXTRIN, CREAM (MILK), CORNSTARCH, GUAR GUM, LOCUST BEAN GUM, XANTHAN GUM, VANILLA EXTRACT, SOY LECITHIN, SODIUM ACID PYROPHOSPHATE, BAKING SODA, APOCAROTENAL (COLOR), MONO- AND DIGLYCERIDES, ERYTHORBIC ACID, POTASSIUM SORBATE (PRESERVATIVE), MONOCALCIUM PHOSPHATE, ENZYMES, CALCIUM CARRAGEENAN, TURMERIC (COLOR), FD&C RED NO 40, FD&C BLUE NO 1, ACACIA, CARRAGEENAN, BETA-CAROTENE (COLOR), VITAMIN D3, VITAMIN A PALMITATE. CRUST: WHOLE WHEAT FLOUR, SOYBEAN OIL, WHEAT FLOUR, SUGAR, PALM %OIL, BROWN SUGAR, GLUCOSE SYRUP, WATER, COCOA (ALKALIZED), SALT, NATURAL FLAVORS, CINNAMON, SOY LECITHIN, BETA-CAROTENE (COLOR), VITAMIN A PALMITATE.