Can a four month baby old drink juice?

Yes,but: I seldom recommend juice in infancy unless i'm using it to loosen an infant's stools. Many use them in diluted form, but i personally consider them like feeding an infant a coke. If the kid is to experience an apple it should be in the form of apple sauce, not processed juices. The same goes for the other juices. We need to avoid creating sugar addicts in the cradle.