This has not been studied. In the short term, you probably can. For long-term health, it is not advisable to try. Fruits and vegetables do contain important vitamins and minerals, many of which are water-soluble and need to be consumed daily to prevent deficiency. They also contain fiber as will as other substances that appear to be important for health.
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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