Hello Ma'am,No it is not true,If u drink water in empty stomach,HCl becomes dilute, which is good for you,U can take normal or Saunf/Mulethi(Glycyrrhiza glabera) treated water , Take Tab Triphala 2 at night with Lukewarm water (Himalaya drug)
Next Steps
U can consult online through Practo platform for further advice
Health Tips
Avoid red chilli tea coffee Kadi sour curd cold drinks alcohol smoking tobaco etc if so,