Which food has less impact on blood sugar?

WHOLE GRAIN FLAKES (WHOLE GRAIN WHEAT, SUGAR, RICE, CORN SYRUP, WHEAT FLOUR, YELLOW CORN MEAL, WHOLE GRAIN ROLLED OATS, MALTED BARLEY FLOUR, SALT, CANOLA AND/OR SUNFLOWER OIL, WILDFLOWER HONEY, NATURAL FLAVOR), BERRY FLAVORED GREEK YOGURT GRANOLA [WHOLE GRAIN ROLLED OATS, BROWN SUGAR, RICE FLOUR, CANOLA AND/OR SUNFLOWER OIL, MILK PROTEIN CONCENTRATE, CORN SYRUP, SUGAR, GREEK YOGURT POWDER (HEAT TREATED AFTER CULTURING), WILDFLOWER HONEY, COLOR (RED BEET AND ELDERBERRY JUICE CONCENTRATE, RASPBERRY POWDER), NATURAL FLAVOR, CITRIC ACID, LACTIC ACID, MALIC ACID, STRAWBERRY JUICE CONCENTRATE], BERRY FLAVORED GREEK YOGURT STYLE COATED GRANOLA [WHOLE GRAIN ROLLED OATS, BROWN SUGAR, WHOLE GRAIN WHEAT, RICE FLOUR, CANOLA AND/OR SUNFLOWER OIL, CORN SYRUP, WHEY, SUGAR, WILDFLOWER HONEY, BERRY FLAVORED GREEK YOGURT STYLE COATING (SUGAR, PALM KERNEL AND PALM OIL, REDUCED MINERAL WHEY POWDER, BERRY POWDER BLEND (DRIED: STRAWBERRIES, BLUEBERRIES, RASPBERRIES, CRANBERRIES), NONFAT DRY MILK SOLIDS, GREEK YOGURT POWDER (HEAT TREATED AFTER CULTURING), NATURAL FLAVOR, LACTIC ACID, SOY LECITHIN, COLOR (RED BEET JUICE CONCENTRATE), SALT)], BHT ADDED TO PACKAGING MATERIAL TO PRESERVE PRODUCT FRESHNESS. VITAMINS AND MINERALS: REDUCED IRON, NIACINAMIDE, ZINC OXIDE (SOURCE OF ZINC), VITAMIN A PALMITATE, VITAMIN B6, RIBOFLAVIN (VITAMIN B2), THIAMIN MONONITRATE (VITAMIN B1), FOLIC ACID, VITAMIN D, VITAMIN B12.