Which food has less impact on blood sugar?

SUGAR, WATER, UNBLEACHED ENRICHED FLOUR (WHEAT FLOUR, NIACIN, REDUCED IRON, THIAMIN MONONITRATE, RIBOFLAVIN FOLIC ACID), VEGETABLE OIL (PALM OIL AND SOYBEAN OIL), CRUNCH BLEND (SUGAR, COCOA [PROCESSED WITH ALKALI], HYDROGENATED COTTON SEED OIL, CORN STARCH, PALM OIL, RICE FLOUR, CARAMEL COLOR, NATURAL AND ARTIFICIAL FLAVOR, TITANIUM DIOXIDE [COLOR]), COCOA (PROCESSED WITH ALKALI), CONTAINS 2% OR LESS OF EACH OF THE FOLLOWING: SOY FLOUR, GLYCERINE, LEAVENING (SODIUM BICARBONATE, SODIUM ALUMINUM PHOSPHATE, SODIUM ACID PYROPHOSPHATE, MONOCALCIUM PHOSPHATE), NONFAT MILK SOLIDS, BLEACHED WHEAT FLOUR, SALT, CORN SYRUP SOLIDS, WHEAT FLOUR, DEXTROSE, WHEAT STARCH, CITRIC ACID, SOY LECITHIN, NATURAL AND ARTIFICIAL FLAVORS, DISTILLED MONOGLYCERIDES, TITANIUM DIOXIDE (COLOR), ENZYMES, CALCIUM CARBONATE, WHEY (MILK) PROTEIN, GUAR GUM, XANTHAN GUM, SODIUM STEAROYL LACTYLATE, MODIFIED CORN STARCH, AGAR, PROPYLENE GLYCOL MONOESTERS, EGG YOLKS, TAPIOCA DEXTRIN, CORN DEXTRIN, KARAYA GUM, MONOGLYCERIDES COLORED WITH TURMERIC AND ANNATTO, CELLULOSE GUM, PRESERVED WITH POTASSIUM SORBATE, SODIUM PROPIONATE AND SORBIC ACID