When you take your tea or coffee take one teaspoonful Sat-Isabgol herb (internationally known as Psyllium husks/powder/plantogo ovata) with water before your tea or coffee each time.
Do not worry about side effect of Sat-Isabgol herb (internationally known as Psyllium husks/powder/plantogo ovata) because it is completely harmless and no side effect it is a food supplement and fiber source.
This method prevents your intestine or stomach from tannin and caffeine of tea and coffee, which slow your intestine movement and cause constipation.
Moreover, take one teaspoonful before your meals and bed time.
at least 5-7 teaspoonful take first day of treatment
You find a good result in next day then reduce your dose to 3-4 times a day.
Then take it life long as a food supplement
this treatment also cure your heart burn acidity and digestion problem