Why You're Bloated Even When You're Eating "Healthy": Expert Explains

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Lunch: A salad. Breakfast: Overnight oats. Fruit smoothies, protein bars, sugar-free snacks, green juices-the modern "healthy diet" is full of foods that promise to be gut-friendly and clean. But gastroenterologists say more people are coming to their offices with the same complaint: constant bloating, even though they are eating right.

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Confusing for many is the discomfort. The food is healthy, so why does the stomach still feel bloated, tight or uncomfortable? We spoke to Dr Sushrutha CS, Surgical Gastroenterology, Hepato-biliary Pancreatic Surgery and Liver Transplant Surgeon, HOSMAT Hospitals, who shared insights for the same.

It's Not Just About Overeating Anymore

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"Bloating is no longer considered just a result of overeating or bad food choices. An increasing amount of research is pointing to a much more complex interaction with the gut microbiome, stress, eating patterns, food intolerances and even lifestyle patterns," said Dr Sushrutha.

Studies published in The Lancet Gastroenterology & Hepatology have shown that functional gastrointestinal disorders affect close to 40% of the world's population. One of the most common digestive symptoms reported is bloating, especially by women.

Why "Healthy" Doesn't Always Mean Easy To Digest

One of the biggest misconceptions is that "healthy" automatically means "easy to digest".

"For your long-term gut health, choose fibre-rich foods such as oats, raw vegetables, lentils, fruits, nuts, seeds and whole grains. However, fibre is fermented by bacteria in the large intestine, and gas is produced as a natural byproduct. If fibre is rapidly increased in the diet, the gut may struggle to adapt quickly enough, especially in those who are otherwise used to low-fibre diets," explained Dr Sushrutha.

This is why somebody who suddenly switches to only eating salads, smoothies or high-protein, high-fibre diets may actually feel more bloated to begin with.

The FODMAP Factor

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Also, there is an increasing awareness of FODMAPs, or fermentable carbohydrates, present in otherwise healthy foods such as onions, garlic, apples, beans, wheat, milk, and even certain artificial sweeteners. Some people do not absorb these carbohydrates well, and they ferment in the gut, leading to gas, distension and discomfort.

A recent study published in The Lancet has hinted that fructans - a carbohydrate found in wheat products - could be the real culprit behind the bloating often blamed on gluten.

The Hidden Cost Of "Diet" Foods

Another major factor is the modern obsession with "diet" foods.

Sugar alcohols such as sorbitol, xylitol and erythritol are often found in protein bars, low-calorie snacks, artificially sweetened beverages and sugar-free products. While these ingredients are touted as healthier options, they're most notorious for their bloating and digestive woes, as they're only partially absorbed along the intestines.

Raw Versus Cooked: Does It Matter?

"From a nutrition perspective, medical practitioners also caution that raw foods can sometimes be harder to digest than cooked foods. Cruciferous vegetables such as broccoli, cabbage and cauliflower are complex carbohydrates when raw and undergo extensive fermentation in the gut. Cooking breaks them down a little , which makes them easier to digest," added Dr Sushrutha.

How Stress And Habits Play A Role

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Lifestyle factors are just as important.

"The gut and brain are intricately connected via the gut-brain axis. Chronic stress, anxiety, poor sleep, eating on the run and sedentary lifestyles have a direct impact on digestion. Stress redirects blood flow away from the digestive tract, decreasing gut motility and changing the composition of the gut microbiome. This can lead to bloating even if you have a very good-looking diet," explained Dr Sushrutha.

Today, many people eat while doing other things - in meetings, driving or scrolling through their phones. This leads to eating faster, insufficient chewing and swallowing extra air, which causes bloating.

Research also suggests that the makeup of the gut microbiome is a major factor. Even when eating healthy foods, an imbalance in gut bacteria can lead to more fermentation and gas production.

When Bloating Could Mean Something More

Doctors also warn against self-diagnosing every bout of bloating as a "gut issue." If you have persistent bloating, unexplained weight loss, severe pain, vomiting, anaemia or changes in your bowel habits, you may need to be tested for underlying conditions such as irritable bowel syndrome, lactose intolerance, coeliac disease, endometriosis, thyroid disorders or inflammatory bowel disease.

The answer is almost never to cut out all healthy foods. What you want to know, instead, is how one gut responds.

Message From The Expert

Dr Sushrutha concluded, "We are increasingly recommending gradual fibre introduction, adequate hydration, mindful eating, stress reduction, regular physical activity and personalised nutrition rather than extreme "clean eating" trends. Sometimes the best diet is not the most restrictive diet but the one that your body can comfortably and regularly digest."

Disclaimer: The information provided in this article is for general informational and educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or a qualified healthcare provider with any questions you may have regarding a medical condition.