Calories

• Those looking for a boost of energy should look to potatoes and sweet potatoes. One medium potato will yield 110 calories. One medium sweet potato also will yield 110 calories. Those looking for low amounts of calories should look to cucumbers and celery. Two medium stalks of celery have 15 calories, while one-third of a medium cucumber has only 10 calories.
  
  

Fat

• Nearly every type of vegetable is fat free. Sweet corn, one of the few types of vegetables with fat, only has 2.5 g of fat per one medium ear of corn.
  
  

Potassium

• If you are looking to get more potassium in your diet, eat potatoes, sweet potatoes, tomatoes and broccoli. Broccoli has 460 mg of potassium per medium stalk. This is around 13 percent of your recommended daily allowance of potassium.
  
  

Fiber

• Dietary fiber also is an important part of a healthy diet. Sweet potatoes, broccoli and onions all have over 10 percent of your daily value per serving. For onions, a serving size is one medium onion.
  
  

Vitamin C

• Vegetables can be an excellent source of vitamin C. One medium bell pepper has 190 percent of your daily vitamin C, while one medium stalk of broccoli has 220 percent of your recommended daily amount.