It is often recommended that people get 5 to 9 servings of fruits and vegetables per day. I have recently tried that and found that it is not easy to do so. Also I tend to focus more on the fruits than the vegetables, but they have more sugar and possibly less nutrients. To get more vegetables, I try to get ones that are high in nutritional value (tomatoes, broccoli, spinach) or fiber and protein (like beans). Also, I've had to start fixing my lunch and bringing it to the office.
I will say that since focusing more on my diet I feel a little more energetic. I've gone with smoothies to ensure the fruits and vegetables and protein (whey protein added). I avoid cooked vegetables and ones prepared with salt, butter or spices.
If anyone else has some tips to ensure more of these I'd like to hear from you.