Oxidation occurs when fruits and vegetables are cut and exposed to oxygen. The loss of nutrients by oxidation is not going to be great, regardless of how long a smoothie is blended, because oxidation takes time. Think of an apple, even though it may start to brown right away, it takes a long time for the entire apple slice to change color. Even then, you cut off the brown and the inside remains unaffected. Fruits and veggies are also so rich in nutrients that the body will still profit if a loss occurs. So drink up! Smoothies are a great way to increase fruit and veggie consumption and reap the benefits of fiber, antioxidants, vitamins and minerals. Check out our smoothie recipes.