All good tasting fruit juices are what kids will thrive on, "IF" their stomach/intestines are not loaded with fermenting grains/toxins.
As long as a person eliminates what they ate in 24 hours or less, they are not fermenting inside and their bowel elimination does not smell the room up. People who stink, are rotting on the inside and real fresh fruit juice will not be their favorite drinks.
For kids
NEVER BUY
drinks with:
corn syrup
fruitose
dyes/colorings
vitamin c added
calcium added
made from concentrate (uses toxic city water)
citric acid
etc., etc.
------------
This leaves the option of "organic" frozen and many of these are LIES and have added chemicals, read the label. Also organic whole juice in glass jars. The best option is the whole real fresh/ripe fruit and let the kids eat it! For liquids if you don't have a water distiller in the house, you have lost the battle.