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Ask the Expert Archive

Are nutrients lost to oxidation when fruits or vegetables are blended?

 

Q. I have a NutraBullet to encourage more fruit consumption. I blend fruit and kale or spinach leaves for breakfast. If I blend for less than 15 seconds am I losing nutrients by oxidation?

 

A. 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.

 
 
 
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The Expert: Dr. Elizabeth Pivonka, a mother of two and a registered dietitian, shares years of experience in getting people to eat more fruits and veggies.Read Her Full Bio

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