Which food has less impact on blood sugar?

CAKE BATTER: (WHITE CAKE MIX [SUGAR, ENRICHED BLEACHED WHEAT FLOUR (ENRICHED WITH NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID] PALM OIL (WITH PROPYLENE GLYCOL MONO DIESTERS OF FATS AND FATTY ACIDS MONO AND DIGLYCERIDES AND SOYA LECITHIN), DRIED EGG WHITES, FOOD STARCH - MODIFIED LEAVENING (SODIUM BICARBONATE SODIUM ALUMINUM PHOSPHATE MONO PHOSPHATE MONOHYDRATE), CONTAINS 2% OR LESS OF THE FOLLOWING: NON FAT DRY MILK POWDER, DEXTROSE, SALT, DRIED EGG YOLKS, SORBITAN MONOSTEARATE (WITH TOCOPHEROLS ADDED AT 100 PPM), SODIUM STEAROYL, LACTYLATE POLYSORBATE 60 (WITH TOCOPHEROLS ADDED AT 100 PPM), ARTIFICIAL FLAVOR, XANTHAN GUM, GUAR GUM, CELLULOSE SOY FLOUR], CANOLA OIL, MODIFIED FOOD STARCH, SODIUM PROPIONATE), FONDANT: (SUGAR, CORN SYRUP, PALM OIL, GUM TRAGACANTH (STABILIZER), NATURAL AND ARTIFICIAL FLAVORS, CELLULOSE GUM (THICKENER), MODIFIED CORN STARCH, POTASSIUM SORBATE (PRESERVATIVE), GLYCERINE, ACETIC ACID (PRESERVATIVE), COLOR(S)* (*) MAY CONTAIN ONE OR MORE OF THE FOLLOWING COLORS: TITANIUM DIOXIDE, FD&C YELLOW #5 FD&C YELLOW #6, FD&C RED #3, FD&C RED #40, FD&C BLUE#1, CARAMEL COLORING), VANILLA FROSTING: (CONFECTIONERS SUGAR, ALL PURPOSE PALM SHORTENING, PALM OIL MONO-AND DIGLYCERIDES POLYSORBATE 60, VANILLA EXTRACT, SALT), CHOCOLATE FILLING: (CONFECTIONERS SUGAR, PALM SHORTENING (PALM OIL, MONO-AND DIGLYCERIDES POLYSORBATE 60), COCOA POWDER (PROCESSED WITH ALKALI), VANILLA EXTRACT), PAN GREASE: (ALL PURPOSE PALM SHORTENING, CANOLA OIL, BLEACHED WHEAT FLOUR [MALTED BARLEY FLOUR NIACIN IRON THIAMIN MONONITRATE RIBOFLAVIN FOLIC ACID].