Many people believe that eating more fruit and drinking fruit juice when trying to lose weight will help their efforts.  Unfortunately, although fruit does indeed have many nutritional benefits, it does contain sugar and can reduce the amount of weight you are able to lose.  Smoothies are especially full of sugar.  I recommend replacing fruit such as mangoes and bananas with cherries and berries and relying more on vegetables than fruit for your vitamin intake.  For example, did you know that one cup of chopped red pepper contains more than 100% of your daily recommended allowance of vitamin C?  When you do eat fruit, eat it early in the day rather than snacking on it late at night.