When you use a blender to make healthy vegetable/fruit drinks, are some vitamins or nutrients destroyed?
Yes. Once a vegetable/fruit is detached from the nutrient source of the tree/plant it will start losing nutrients and begin breaking down. Exposing the inners of these to oxygen speeds up the process. That is why juices and blended drinks must be consumed immediately because you cannot store them in the fridge or freeze them without losing a lot of nutrients. The quicker you drink it after it has been blended/juiced, the better. If you are just referring to the actual blades impacting the veg/fruit, I don’t think that the actual physical impact would cause nutrient loss, but rather the subsequent oxygenation and enzymatic breakdown of the food.
