O A. Another reason superfoods have become very popular with nutritionists is they operate as a natural mood enhancer - with zero side effects. B. According to best-selling author and nutritionist Dale Shoop, replacing dairy and gluten with superfoods like spinach and blueberries can lower cholesterol by up to 50 percent. C. Because of their proven ability to lower cholesterol, reduce the risk of heart disease, and enhance mood naturally, superfoods have become very popular with nutritionists worldwide. o D. As I've shown, superfoods such as blueberries, spinach, and salmon can go a long way in increasing overall health by decreasing cholesterol levels.​