Which food has less impact on blood sugar?

ICE CREAM AND DECORATION INGREDIENTS AS PACKAGED: MILK, CREAM, VANILLA FLAVORED ICING (WATER, HYDROGENATED PALM KERNEL OIL, DEXTROSE, CORN SYRUP, SUGAR, SODIUM CASEINATE, POLYSORBATE 60, MODIFIED CELLULOSE, SALT, NATURAL AND ARTIFICIAL FLAVORS, SOY LECITHIN, POLYGLYCEROL ESTERS OF FATTY ACIDS, XANTHAN GUM, COLORS*), SKIM MILK, SUGAR, CHOCOLATE FLAVORED CRUNCH (BLEACHED WHEAT FLOUR, SUGAR, PALM OIL, COCOA [PROCESSED WITH ALKALI], CORN SYRUP, CORN FLOUR, BAKING SODA, SOY LECITHIN, SALT, NATURAL AND ARTIFICIAL FLAVORS), CORN SYRUP, WHEY PROTEIN CONCENTRATE, WHEY, COCOA (PROCESSED WITH ALKALI), GUAR GUM, NATURAL FLAVOR, MONO AND DIGLYCERIDES, XANTHAN GUM, CARRAGEENAN, ANNATTO AND TURMERIC EXTRACT (COLOR), AS PACKAGED, DECORATIVE OPTIONS MAY INCLUDE: CONFETTI (SUGAR, RICE FLOUR, PALM OIL, PALM KERNEL OIL, CORNSTARCH, CELLULOSE GUM, CARRAGEENAN, CONFECTIONER'S GLAZE, COLORS*), GEL (WATER, SUGAR, CORNSTARCH-MODIFIED, CITRIC ACID, COLORS*), *COLORS: ICING AND DECORATIONS MAY INCLUDE BLUE 1, BLUE 1 LAKE, BLUE 2, BLUE 2 LAKE, RED 3, RED 40, RED 40 LAKE, YELLOW 5, YELLOW 5 LAKE, YELLOW 6, YELLOW 6 LAKE, GREEN 3, TITANIUM DIOXIDE