For the junk food question junk food and alcohol/drugs are similar because they are both addicting for example when u want to eat junk food like a candy or mcdonald’s you kinda crave for more or want to eat it again that’s how drugs/and alcohol are like
He should include aerobic excersizes
Tofu, yogurt, eggs, lentils, meat, fish, nuts, bread, and cheese.
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From what I found, it mostly causes tooth discoloration, but no real tooth decay / rotting / etc.
If you are worried though I suggest contacting your doctor and dentist! That is the best route to go, since medications affect everyone different!
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