Isabgol, commonly known as psyllium husk, is widely used as a bulk-forming laxative for constipation. However, its high fibre content has also drawn attention for its potential role in gut and metabolic health.
Oncologist Dr Vartika Vishwani recently highlighted the importance of dietary fibre, noting that adults should aim for adequate daily fibre intake and that many people do not get enough through their regular diet. She also described psyllium as more than simply a laxative, pointing to its potential benefits for blood sugar, cholesterol and gut health.
Psyllium absorbs water in the intestine and increases stool bulk, which helps ease constipation. It needs to be taken with sufficient liquid to work properly and reduce the risk of problems related to inadequate fluid intake.
Fibre can also support blood sugar and cholesterol management. Soluble fibre, in particular, can reduce the absorption of cholesterol in the digestive tract, while fibre more broadly can contribute to better blood-glucose control.
However, claims that isabgol directly prevents or reduces cancer risk need more careful interpretation. While fibre-rich diets are being studied for their relationship with colorectal cancer, the National Cancer Institute says it remains unclear whether a high-fibre diet reduces colorectal cancer risk to a clinically important degree.
Psyllium should therefore be viewed as one source of dietary fibre rather than a cancer-prevention treatment. People taking medicines should also discuss regular psyllium use with a doctor or pharmacist because it can affect the absorption of some medicines.