This is a hot topic and the guidance has changed back and forth a bit. Currently the CDC says that a child under 12 months should not have juice.

Some pediatricians may say that from 6-12 months they can have 4oz of juice but it must be diluted as 50% juice, 50% water.

The main concern with too much juice or water for a child is that it is not a calorie dense fluid to meet their metabolic demand. Additionally the sugar in juice creates a risk for dental caries.

Personally, I dont see the benefit of giving a child under 12 months old diluted juice.

For your exam it is safe to say that avoiding juice under 12 months is recommended as that is the CDC guidance.

I like this chart visually. It makes sense in my brain. But find one that works for you.

The important thing to know is by month, what vaccines should each child receive. So if someone comes to you and says they have gotten all of their shots up to 3 months what shots have they received?

There are only a few vaccine questions and I think they are pretty fair so dont spend too much time on this.