Poorva Chavan
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Isabgol (psyllium) is widely used in India to get relief from gastrointestinal conditions like constipation, diarrhoea and acidity. It is also touted be an effective weight loss tool and is known to keep your heart healthy. Since it is associated with many health benefits, we don't think twice before using it and ignore the fact that using it excessively and in an improper way can have side effects too.
Affects absorption of minerals: A study found that consumption of 25 g isabgol husk increases the faecal excretion of trace minerals like zinc, copper and manganese. It also lowered their retention in the body due to which, the serum levels of these trace minerals dropped significantly.[1] These trace minerals are equally important in maintaining good health. Zinc improves immunity, promotes enzyme activity and helps in healing wounds. Manganese prevents the wear and tear of bones and connective tissues. It helps in calcium absorption, blood sugar regulation and fat and carbohydrate metabolism. Copper, on the other hand, is important for production of red blood cells and strengthening the immune system.
Can interfere with the absorption of drugs: Isabgol tends to adsorb the drug on its surface due to which its absorption in the blood from the gastrointestinal tract or the small intestine reduces. As a result of which, the effectiveness of the drug is reduced.[2] This claim holds true for aspirin, but it is believed that isabgol interferes with the absorption of other drugs too. However, there is no proof to support this claim.
Can cause bloating: Isabgol is high in fibre and is hence prescribed to people suffering from constipation and other gastrointestinal disorders but consumption of too much fibre affects the passage of gas from the GI tract to the rectum, leading to gas retention that results in bloating.[3]
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References:
1. Kawatra A, Bhat CM, Arora A. Effect of Isabgol husk supplementation on trace minerals (Zn, Cu, Mn) levels in adolescent girls. Plant Foods Hum Nutr. 1992 Jul;42(3):225-30. PubMed PMID: 1323826.
2. Shahid M, Siddiq A, Mazhar H, Baig SG. To study the effect of Isabgol on absorption of Aspirin. Journal of Pharmacy and Bioallied Sciences. 2010;2(2):152. doi:10.4103/0975-7406.66997.
3.Gonlachanvit S, Coleski R, Owyang C, Hasler W. Inhibitory actions of a high fibre diet on intestinal gas transit in healthy volunteers. Gut. 2004;53(11):1577-1582. doi:10.1136/gut.2004.041632.