AIIMS, Harvard gastroenterologist shares top 3 reasons for bloating, says ‘even healthy foods can trigger symptoms’

Bloating can be uncomfortable and confusing. AIIMS, Harvard gastroenterologist Dr. Sethi shares the top 3 causes and how to tackle them effectively.
Bloating can be uncomfortable and sometimes embarrassing, affecting your daily routine and overall digestion. Many people struggle to identify why it happens, as the causes are often overlooked or misunderstood. Dr Saurabh Sethi, a gastroenterologist and liver specialist trained at AIIMS, Harvard and Stanford Universities, shared in his September 3 Instagram post the top 3 reasons for bloating and how to tackle them effectively. (Also read: Gastroenterologist shares 7 common mistakes people make while cooking in air fryer: ‘Always clean the tray and use…’ )
1. Diet
Dr. Sethi explains that what you eat can play a huge role in bloating. “The biggest culprits are lactose, fructose, fructans, sorbitol, and other carbohydrates that your gut does not fully absorb. Even healthy foods can ferment in the digestive tract and trigger symptoms if you are sensitive,” he says. He emphasises that it’s not just “junk” foods, sometimes foods considered healthy can also lead to gas and discomfort depending on an individual’s gut sensitivity.
2. IBS or Functional Dyspepsia
According to Dr. Sethi, conditions like irritable bowel syndrome (IBS) or functional dyspepsia mean your gut is more sensitive than usual. “The movement of your intestines is disordered, which can lead to gas getting trapped, belly distention, and bloating,” he explains. He also points out that these issues are often linked to changes in gut bacteria, meaning your digestive system may react more strongly to foods or stress than usual.
3. Constipation
Slow-moving bowels can also be a major factor in bloating. Dr. Sethi says, “Even if you are going once a day, if your colon moves slowly, food sits longer, leading to more fermentation, gas buildup, and bloating.” He adds that constipation can make the gut overly sensitive, contributing to the same problems seen in IBS, including gas trapping, belly distention, and alterations in gut bacteria.
Note to readers: This report is based on user-generated content from social media. HT.com has not independently verified the claims and does not endorse them.
This article is for informational purposes only and not a substitute for professional medical advice.
ABOUT THE AUTHORAkanksha AgnihotriAkanksha Agnihotri is a lifestyle journalist with over 3 years of experience. She is a psychology graduate and holds a postgraduate diploma in Radio and Television Journalism from the Indian Institute of Mass Communication, Delhi, where she graduated as a gold medalist. Originally from Bhopal, the beautiful capital of Madhya Pradesh, she draws inspiration from the city’s rich cultural heritage and layered storytelling traditions that subtly shape her narrative voice. She writes extensively about fashion, beauty, health, relationships, culture, and food, exploring everything from trending styles and runway moments to wellness routines and mindful living. Passionate about meaningful and candid conversations, she enjoys interviewing celebrities, doctors, designers, and film personalities, diving into discussions on fitness, beauty, mental health, and everything fun in between. With a keen eye for trends and a thoughtful understanding of human behaviour, she brings depth, sensitivity, and authenticity to her stories, ensuring they resonate with a wide and diverse audience. When she’s not working, you’ll usually find her lost in a book, planning her next mountain trek, or mapping out spontaneous travel escapes. She loves discovering new authors, revisiting old favourites, and spending quiet afternoons in museums soaking in art, history, and culture. An avid bird-watching enthusiast, she finds joy in early morning walks, spotting rare birds, and reconnecting with nature. Whether sipping coffee while journaling her thoughts or exploring hidden corners of a new city, she constantly seeks inspiration in everyday moments that often turn into compelling story ideas.Read More
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