Which food has less impact on blood sugar?

SUGAR, ENRICHED BLEACHED WHEAT FLOUR (FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID), MARGARINE (PALM OIL, WATER, SOYBEAN OIL, SALT, CONTAINS LESS THAN 2% OF WHEY SOLIDS, VEGETABLE MONO AND DIGLYCERIDES, SOY LECITHIN, BHA & BHT ADDED TO PROTECT FLAVOR, VITAMIN A PALMITATE AND VITAMIN D3 ADDED, NATURAL & ARTIFICIAL FLAVOR), WATER, CORN SYRUP, CORN STARCH, BAKING POWDER (SODIUM ACID PYROPHOSPHATE, BAKING SODA, CORN STARCH, MONOCALCIUM PHOSPHATE), NONFAT DRY MILK, VANILLA, HIGH FRUCTOSE CORN SYRUP, GLYCERIN, YELLOW 6, MODIFIED FOOD STARCH, CARRAGEENAN GUM, PRESERVATIVES (POTASSIUM SORBATE, SODIUM BENZOATE AND CITRIC ACID), XANTHAN GUM, PALM & PALM KERNEL OIL, COCOA POWDER, SOY LECITHIN, DEXTRIN, CARNAUBA WAX, CONFECTIONER'S GLAZE, YELLOW 5, BLUE 1, RED 40, YELLOW 6 LAKE, YELLOW 5 LAKE, RICE CEREAL (RICE FLOUR, CORN FLOUR, SUGAR, MALT EXTRACT, SALT, OAT FLOUR, CALCIUM CARBONATE, SOY LECITHIN), PALM KERNEL FAT, MALTODEXTRIN, TAPIOCA STARCH, DRIED GLUCOSE SYRUP, TITANIUM DIOXIDE (COLOR), SORBITAN TRISTEARATE, GUM ARABIC, ARTIFICIAL FLAVOR, GUAR GUM, EGGS, SALT.