@@JohnHealthCoach There are many knowledge that cannot be prove by science along. Just like the Chinese needle technic or the Chinese "chi" that flows throught the human body through its networks.
Hello lau woeiming 👋 Yes, the acidity will corrode the tooth enamel which leads to tooth sensitivity and decay Some tips to prevent this if you take apple cider vinegar: - drink with a straw - rinse your mouth after drinking - don’t brush your teeth immediately after drinking, wait at least 30 mins