The vast majority of adults do not eat enough fruits and vegetables, according to a new CDC study. The data comes from a long-term study of almost 300,000 Americans over more than 30 years. The current dietary guidelines recommend adults eat 2 to 3 cups of vegetables and 1 1/2 to 2 cups of fruit each day. But only 10 percent are eating the recommended daily servings of vegetables, and 12 percent are eating the recommended amount of fruit. The researchers did find that women met these recommendations more than men, and adults over 50 met them more often than younger adults.