In just about every cases it's healthier to choose whole vegetables and fruits over juices and it's the same for beet juice. When the beets are juiced, the pulp of the beets which contains all the fiber and other nutrients are discarded. What's left is simply the juice. The fiber of fruits and vegetables help to fill you up and keep you satisfied in addition to aiding healthy digestion. Blending the fruits and vegetables isn't the same as juicing since you still end up consuming the entire ingredient just in a pureed form.