1  Bael  can help treat certain health conditions, including digestive disorders. Bael  contains a number of substancesthat may affect health. These substances include tannin's, a class of compounds with anti-inflammatory effects. Bael is used in diarrhea, dysentery, boost immune system, help to reduce cholesterol, helpful in constipation act as laxative, purify the blood, and very helpful in stomach related problem