Do smoothies destroy fiber and nutrients, or are they a healthy way to get more fruits and vegetables? In this Ask a Nutritionist episode, registered and licensed dietitian Alyssa Krejci explains whether blending breaks down fiber, how smoothies compare to juicing, and what oxidation actually means for nutrient loss. She also shares practical tips for making balanced, high-fiber smoothies with protein, healthy fats, and antioxidant-rich fruits and veggies so you can enjoy them as a meal, snack, or even dessert.