Which food has less impact on blood sugar?

CAKE (SUGAR, BLEACHED ENRICHED WHEAT FLOUR (WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), VEGETABLE SHORTENING [SOYBEAN OIL, VEGETABLE MONO & DIGLYCERIDES, DISTILLED PROPYLENE GLYCOL ESTER, TOCOPHEROLS(VITAMIN E) AND VITAMIN C PALMITATE(AS ANTIOXIDANTS)], DRIED EGG WHITES, LEAVENING (SODIUM BICARBONATE, SODIUM ALUMINUM PHOSPHATE, MONOCALCIUM PHOSPHATE, SODIUM ACID PYROPHOSPHATE), DRIED EGG YOLKS. CONTAINS 2% OR LESS OF EACH OF THE FOLLOWING: NONFAT DRY MILK, FOOD STARCH MODIFIED, SALT, DEXTROSE, CELLULOSE, DISTILLED MONOGLYCERIDES, NATURAL AND ARTIFICIAL FLAVORS (MILK), SODIUM STEAROYL LACTYLATE, POLYSORBATE 60, EMULSIFIER (PROPYLENE GLYCOL ESTERS OF FATTY ACIDS, DISTILLED MONOGLYCERIDES, SODIUM STEAROYL LACTYLATE), GUAR GUM, XANTHAN GUM, SOY FLOUR.), WATER, BUN SMEAR (BROWN SUGAR, SUGAR, WATER, DEXTROSE, VEGETABLE SHORTENING (PALM OIL). CONTAINS 2% OR LESS OF EACH OF THE FOLLOWING: HIGH FRUCTOSE CORN SYRUP, MONO - AND DIGLYCERIDES, SALT, POLYSORBATE 60, SODIUM BENZOATE (PRESERVATIVE), AGAR, NATURAL AND ARTIFICIAL FLAVOR.), PINEAPPLE (PINEAPPLE, PINEAPPLE JUICE), CHERRIES (CHERRIES, HIGH FRUCTOSE CORN SYRUP, WATER, PRESERVATIVES (POTASSIUM SORBATE, SODIUM BENZOATE), CITRIC ACID, NATURAL & ARTIFICIAL FLAVOR, FD&C RED #40, SULFUR DIOXIDE (PRESERVATIVE)), SOYBEAN OIL.