moderate and restrained
abstinent - restrained
If you are ‘abstinent’ then you choose to completely refrain from an activity or the consumption of something, such as alcohol, for moral, religious, or health reasons. The word implies that the thing being avoided is wanted or enjoyable, making the lack of it something difficult to endure.
Sarah knows that alcoholism runs in her family. That’s why she’s chosen to be totally abstinent from alcohol.
Jack’s drug habit continues to get worse. Our attempts to force him into abstinence have proved futile.
For religious reasons, John and Diane agreed to remain abstinent by not indulging in sexual intercourse until they were married.