Which food has less impact on blood sugar?

SUGAR, WATER, CARAMEL CREME FILLING (SUGAR, WATER, SWEETENED CONDENSED MILK [MILK, SUGAR], CORN SYRUP, PALM OIL, INVERT SUGAR, NON FAT DRY MILK, GRADE A PASTEURIZED HEAVY CREAM, NATURAL FLAVORS, CULTURED SKIM MILK, SALT, SODIUM ALGINATE, DISODIUM PHOSPHATE, MONO GLYCERIDES [HYDROGENATED SOYBEAN OIL], SOY LECITHIN, CITRIC ACID), PALM OIL, ENRICHED FLOUR (BLEACHED WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, FERROUS SULFATE OR REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), SEA SALT TOFFEE SPRINKLE (SUGAR, PALM OIL, TAPIOCA STARCH, SEA SALT, NATURAL FLAVOR, FRUIT AND VEGETABLE COLOR [APPLE, CARROT, HIBISCUS]), PALM KERNEL OIL, CORN SYRUP, CONTAINS 2% OR LESS: COCOA PROCESSED WITH ALKALI, COCOA, SOYBEAN OIL, HYDROGENATED PALM KERNEL OIL, MODIFIED FOOD STARCH, GLYCERIN, WHEY, MONO AND DIGLYCERIDES, BAKING SODA, NATURAL FLAVORS, SALT, CORN SYRUP SOLIDS, EGG WHITES, NONFAT DRY MILK, DEXTROSE, SOY LECITHIN, EGG, PRESERVATIVES (SORBIC ACID, POTASSIUM SORBATE, NATAMYCIN), SODIUM ACID PYROPHOSPHATE, POLYSORBATE 60, SODIUM STEAROYL LACTYLATE, CELLULOSE GUM, XANTHAN GUM, MONOCALCIUM PHOSPHATE, ENZYMES.