Drink vegetable juice, but don't expect it to replace whole vegetables needed in your daily diet. Television commercials want you to believe that you can drink your veggies instead of chewing them. Don't go for it! Whole veggies are still the best way to get your daily dose.
Vegetable juices are fairly rich in vitamins and minerals and low in calories, drinking 6 ounces will typically give you 60% of the Recommended Daily Allowance (RDA) for vitamin C and nearly half the suggested daily intake of beta carotene. However, commercial varieties have lots of sodium (about 600 mg) and provide very little fiber compared to whole vegetables. Look for "no salt added" vegetable juices for the healthiest alternative.