Beetroot is one of the healthiest vegetables which you can combine into your juicing diet. It is high in antioxidants and nutrients including vitamin C, folate, iron, magnesium and potassium just to name a few.
For the children try creating popsicles with the beetroot juice using Sunsella Mighty Pops popsicle makers http://www.amazon.com/Set-Maker-Molds-Free-Silicone/dp/B00CD0LHXE