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Kendra Tolbert MS, RD(Registered Dietitian)answered(4/22/2013)Great question! The quick answer to your question is no,
leaving a green smoothie in the fridge overnight will not cause it to lose all of its nutritional benefits. However that does not mean none of the nutritional
benefits will be lost.
Fruits and vegetables begin to lose their nutrients as soon
as they are harvested. Any change in pH and temperature, exposure to light and
air, and food preparation techniques such as cutting and blending will affect
the nutritional value of a food. Cutting or blending a fruit or vegetable increases
its surface area. This means more of the nutrient contents are exposed to air
Time also plays a role in the loss of valuable vitamins. The
longer the time between when a food is prepared and when it is consumed the
more nutrients it will lose. Your best bet is to prepare your smoothie as close
to the time you plan to drink it as possible. But if that simply is not an
option, store it in an airtight container and prepare it as late as possible to
reduce the amount of time between when you blend it at night and have it in the