J.S.
S. ,lemon juice staight is NOT good for the teeth. The acid in the juice can erode the enamel on your teeth. As long as it is diluted though he should be fine , just make sure he does not have too much of a good thing. My kids also love lemons and lemon juice. I was a dental assistant for 17 years and we saw a few cases of patients who sucked on lemons and we had to do cosmetic bonding (white fillings) on their front teeth because of the errosion. Good Luck. Mom of 4 wife of 1