EVEN DOCTORS CAN'T KEEP AWAY. Our JAZZ apples are a great source of antioxidants and LDL-decreasing properties. New research shows that the polyphenols found in apples can do wonders for blood sugar regulation, specifically how the body creates and processes insulin as well as slowing carbohydrate digestion and reducing glucose absorption. A study mentioned on the World's Healthiest Foods site shows that eating an apple fifteen minutes before a meal decreases caloric intake by 15%.