Moms how do you feel about giving your baby juice?

Tia

My pediatrician recommended mixing my baby's oatmeal with apple juice to help combat any possible constipation from transitioning to purees. My little girl is 6 months and I'm a FTM. Baby seems to enjoy it which is good but the bottle it comes in says it's for ages 12 months and up. I'm sure in moderation it's fine but when did you start introducing juice? How often did you let your LO have it? Which brands did you like the best? If using for constipation what were the results?