Why You Still Feel Gut Discomfort Even After Cutting Out Flour: 4 Hidden Culprits Beyond Gluten

For three years, Ms. A, an office worker, suffered from unexplained abdominal bloating and chronic fatigue. Following advice from friends, she made the difficult decision to cut out all her favorite foods: bread, ramen, and pasta. She believed that 'gluten-free,' a trend popular on social media, was the magic key that would end her long-standing suffering.

However, weeks and months passed, but the gas in her abdomen and the 'brain fog' weighing down her mind showed no signs of disappearing. Deeply frustrated, she wondered, "What on earth is the problem? Am I sensitive to gluten, or am I just someone who shouldn't eat flour at all?"

Does Ms. A's story sound familiar to you?

The problem is that for too long, we might have been pinning all the blame on a single suspect: 'gluten.' The real culprit might not be gluten.

Hello, I'm Dr. Choi Yeon-seung, director of Baengnokdam Korean Medicine Clinic.

If you read this article to the end today, you will understand why gluten-free isn't a silver bullet, who the real culprits hidden within flour are that we didn't know about, and what the wisest dietary approach is, considering all these factors. You will gain a complete picture.

Suspect #1: All About Gluten

As the term 'gluten-free' spread like a trend, 'gluten' became the hottest topic of debate in the health world for a while. With celebrities declaring themselves gluten-free, it was singled out as if it were the main culprit behind all digestive issues.

This phenomenon began as awareness of 'Celiac Disease,' an autoimmune disorder, increased, and more people suffered from unexplained chronic symptoms.

So, is gluten truly a 'common enemy' for all of us?

Gluten is a type of insoluble protein found in wheat, barley, rye, and other grains, playing a role in making bread chewy and helping it rise.

Our Body's Reactions

Our body's reactions to gluten manifest in three distinct ways.

Type 1. Celiac Disease - 'An Army Declaring All-Out War'

This is the most severe form of the problem. When gluten enters the body, our immune system mistakenly identifies it as an enemy and attacks the small intestinal villi, which are part of our own body, leading to an 'autoimmune disease.' The destruction of the small intestinal villi makes nutrient absorption impossible, which can cause chronic diarrhea, abdominal pain, severe weight loss, malnutrition, and even stunted growth. Fortunately, due to genetic factors, it is known to be a very rare disease among Koreans.

Type 2. Wheat Allergy - 'An Immediately Dispatched Fire Truck'

This is a typical 'food allergy' reaction to wheat proteins, including gluten. It is characterized by the rapid and clear onset of symptoms within one to two hours after consuming flour, such as skin hives, itching, swelling of the lips or face, and difficulty breathing.

Type 3. Non-Celiac Gluten Sensitivity (NCGS) - 'An Invisible Civil War'

It is highly probable that most readers of this article fall into this category. This is when individuals experience various discomforts such as a heavy feeling, bloating, and gas several hours after consuming flour, even though they do not have Celiac disease or a wheat allergy. It is characterized by a predominance of systemic symptoms like headaches, chronic fatigue, joint pain, and brain fog, in addition to digestive symptoms. As there are no clear diagnostic criteria, it can only be suspected after ruling out all other conditions.

Mini Q&A

Q. Isn't 'whole wheat,' which is considered healthy, okay?
A. That's a very important question. To put it simply, for those with gluten issues, whole wheat can be worse than regular flour. Whole wheat contains the same amount of gluten, and its higher fiber content can actually cause greater physical irritation to a weakened intestine. Don't be fooled by the healthy image of 'whole wheat.'

Hidden Culprits: Why Gluten Alone Doesn't Explain Everything

If flour-based foods still bother you, even if you don't fall into the three types described earlier, especially Celiac disease or wheat allergy, we need to look beyond gluten. In Korean traditional medicine, the sticky nature of flour is believed to create 'dampness and phlegm' (濕痰) as waste products in the body, which remarkably aligns with the actions of other 'problematic ingredients' in flour identified by modern science.

Culprit #2. Fructan (a FODMAP)

This is the most likely culprit behind gas and abdominal bloating. As explained many times before, it's a 'FODMAP' component that isn't absorbed in the small intestine but ferments in the large intestine, producing gas. Flour contains not only gluten but also a significant amount of fructan. If you still felt discomfort even after going gluten-free, there's a very high probability that fructan is the culprit.

Culprit #3. ATIs (Amylase Trypsin Inhibitors)

This is another type of protein found in wheat, distinct from gluten. Recent research suggests that ATIs can directly stimulate our gut's innate immune system, leading to subtle inflammatory responses. This may be linked to symptoms like 'unexplained body aches and pains.'

Culprit #4. High Glycemic Index (High GI)

Refined white flour, in particular, is converted into glucose very quickly in our bodies, causing blood sugar levels to spike rapidly. These 'blood sugar spikes' inherently promote systemic inflammatory responses in the body and are a primary cause of sudden fatigue and drowsiness after meals.

As such, flour is a 'complex' food that burdens our digestive system and entire body in various ways, including gluten, fructan, ATIs, and a high glycemic index. Now that we know the true causes, what and how should we eat?

So, What and How Should We Eat?

Now we understand the complex truth: gluten isn't the only culprit. So, what's the wisest dietary approach, considering all these factors?

Approach 1. Choose 'Clean' Flour, Not Just 'Gluten-Free'

If you absolutely must eat flour, you can choose slightly better alternatives than regular bread or noodles.

• Sourdough: Traditionally fermented sourdough involves yeast and bacteria breaking down a significant portion of 'fructan' during the fermentation process. While the gluten remains, the reduction in fructan, the main culprit behind gas and bloating, can lead to a more comfortable feeling.
• Ancient Grains (e.g., Spelt): These grains have a different gluten structure and lower ATI content than modern wheat, making them a more comfortable alternative for some sensitive individuals.

Approach 2. The Safest Alternative: A 'Rice'-Based Diet

The safest and most reliable method is to base your diet around 'rice,' which is familiar to us. Rice is free of both gluten and fructan, making it an excellent and comfortable carbohydrate source for those with sensitive intestines.

Instead of flour bread, choose warm rice. Instead of pasta, opt for light rice noodles. And instead of snacks, try savory nurungji (scorched rice) or rice crackers.

Approach 3. Finding the True Culprit Through a 'Low-FODMAP' Diet

If you want to scientifically pinpoint whether the real culprit bothering you is 'fructan,' 'lactose,' or another component, following the 'elimination-reintroduction' process of a 'low-FODMAP' diet is the most accurate method.

Approach 4. Before Food, Strengthen Your 'Gut Barrier' First

Ultimately, the root of all these problems lies in a weakened 'gut barrier,' which is our body's defense line. If the gut barrier is strong, it won't be easily affected by any food that enters. Therefore, making efforts to strengthen the gut barrier through things like bone broth or fiber-rich cooked vegetables is paramount.

Now, It's Time to Become a 'Food Detective' for Your Body

Are you frustrated by the failure of 'gluten-free'? No, on the contrary, this is a very important clue. Just by discovering that 'gluten is not the culprit,' we can narrow down our investigation significantly to find the real perpetrator.

From now on, our goal is not to blindly fear food, but to become a smart 'food detective' who meticulously observes our body's reactions and creates 'my own trigger food list.'

Right now, if symptoms persist even after attempting 'gluten-free,' this is the 'golden time' to stop worrying alone and excessively restricting your diet. Instead, seek professional help to systematically uncover the true culprits like 'fructan' and 'lactose.'

Today, we've taken an in-depth look at 'flour.' But I'm sure many of you are also curious about the hidden secrets of 'milk (dairy products),' which are just as misunderstood as flour, right? If the opportunity arises soon, I will cover this topic in detail.

Don't be tired of endless diet restrictions anymore. Once we find the exact cause, our dining table can become much more liberating and abundant.

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Baengnokdam Korean Medicine Clinic
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