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Blog August 19, 2026

Is Eating Less Really the Answer? A Fiber-Filling Diet Strategy

Dr. Yeonseung Choe
Dr. Yeonseung Choe
Chief Director

Have you ever closely examined the nutrition label on convenience store bento boxes or salad packs? You meticulously check the sugar and protein content, but somehow skip right past the 'dietary fiber' line. When it comes to diet/weight management, most people focus only on 'what to cut out.' They get so caught up in reducing carbohydrates and eliminating sugar that they miss the 'filling' aspect that their body actually needs.

This is exactly where Fibermaxxing, trending on social media these days, comes in. Instead of starving or restricting, it's a movement aimed at maximizing dietary fiber intake to restore the body's rhythm. Today, let me break down what dietary fiber actually does in your body and how you can strategically incorporate it into your daily life.

Why We Need to Rediscover Dietary Fiber

Many people only know dietary fiber as 'something that solves constipation.' But the key to dietary fiber lies in the fact that our bodies cannot digest it. Indigestible substances that pass through the gastrointestinal tract without being broken down by gastric enzymes perform various functions along the way.

One study viewed dietary fiber as influencing the bioavailability of macronutrients, the digestive process, and postprandial metabolism. Simply put, it acts as a brake that regulates the speed so that the food you eat isn't absorbed too quickly. When this brake is properly applied, blood sugar doesn't spike dramatically, and satiety lasts longer.

The reality is quite concerning. According to the Korea Disease Control and Prevention Agency's National Health Statistics, adults' average daily dietary fiber intake decreased from 25.1g in 2019 to 22.9g in 2024—a decline of 8.8% over five years. While portion sizes may have increased, the body's essential refined nutrients are actually being lost.

Fibermaxxing: A Passing Trend or a Practical Strategy?

Terms like 'Fibermaxxing' and 'Poopmaxxing' circulating on TikTok may seem somewhat lighthearted. However, at its core lies the goal of establishing regularity in bowel movements and building healthy habits that aid weight management.

When actually trying it, the most important thing is to avoid 'sudden increases.' If someone who rarely eats fiber suddenly increases their intake, they'll inevitably experience bloating and suffer from gas. That's why you need to first establish a baseline that suits you.

The general recommendation is about 25-38g per day for adults. Men over 50 need about 30g, while women require slightly less. Teenagers need about 20-25g per day[1]. Simply counting whether today's meals met these numbers can dramatically change the quality of your diet.

Dietary Fiber and Metabolism from a Korean Medicine Perspective

When I see patients in the clinic, there are those who frequently feel hungry or experience overwhelming drowsiness after meals. In Korean medicine, this is viewed as a state where the flow of energy (gi) has become stagnant or metabolic waste products aren't being properly processed.

Dietary fiber acts as a 'cleaner' that aids this flow. When the intestinal environment is clean, the circulation of gi and blood (giyeol) runs smoothly, and unnecessary dampness and phlegm don't accumulate in the body. A lack of dietary fiber first reduces intestinal motility, and this doesn't end with just bowel movement problems—it extends to systemic deterioration of condition.

For those who keep food journals, I first ask about 'whether the colors and textures of vegetables were diverse' rather than 'what was eliminated.' Refined grain-focused meals add heavy dampness to the body, but coarse dietary fiber pushes that dampness out and aids circulation.

Fiber-Filling Routine You Can Start Today

Completely overhauling your diet is too difficult. Instead, just add 'one touch' to the foods you normally eat. Here's my recommended approach:

  • Make your staple food slightly coarser: Try brown rice or oatmeal instead of white rice. These days, convenient high-fiber instant rice products are readily available, making them great for busy mornings.

  • Redefine what snacks mean: Instead of cookies or bread, try a kiwi. One kiwi contains about 2g of dietary fiber and is rich in antioxidants.

  • Create a pre-meal routine: In a 6-week nutrition trial conducted by researchers, 19 healthy adults were observed as they supplemented their baseline diet with either 10g or 40g of dietary fiber. Another case used a method of consuming 5g of supplement before meals. When you first put dietary fiber into your system right before a meal, the absorption speed of the food that follows is delayed.

  • Cautions when using supplements: Some fiber powders on the market contain about 6g of dietary fiber per small spoonful. However, I recommend filling your fiber needs through natural foods whenever possible.

A Sustainable 'Filling' Diet/Weight Management Approach

The success of diet/weight management doesn't depend on 'how much you endure' but on 'how satisfyingly you fill up.' If you get too caught up in cutting sugar, your body feels deprived and ultimately compensates through binge eating.

The core of Fibermaxxing lies in precisely managing the hunger your body feels. When you fill your intestines with dietary fiber and regain the rhythm of bowel movements, you'll experience that your food intake naturally decreases without forced restriction.

How about adding a plate of leafy greens to your dinner table tonight, or a kiwi after your meal? These small additions, rather than grand plans, are the fastest way to change your body's metabolism.

If you feel limited by dietary adjustments alone or are concerned about specific weight management methods suited to your constitution, consider trying the Baekrokdam program with Baekrok Gambi-jung. When an approach that considers individual metabolic states is added, dietary management through dietary fiber becomes much more effective. Next time I see you in the clinic, please do let me know what vegetables you've added.

References

Dr. Yeonseung Choe

Dr. Yeonseung Choe Chief Director

In practice, I often meet patients who have tried many places yet found little relief, growing weary even in spirit. Walking alongside them over the years, I came naturally to care deeply about conditions that are hard to heal. In search of answers, I never confined myself to a single approach — I draw together modern research on how the body adapts to and breaks down under stress, the perspectives of functional and integrative medicine, and the long tradition of Korean medicine, holding these many viewpoints side by side as I try to understand each person's body. Since 2010, I have designed each treatment with the belief that even the same illness unfolds differently within each person's bodily environment.

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비대면 진료 가능 여부도 함께 안내해드려요 Diet Care Inquiry
Korean herbal diet medicine in an easy-to-take tablet

Korean herbal diet medicine in an easy-to-take tablet

Baekrok Gambijeong is a tablet made by concentrating and drying a herbal decoction. A Korean medicine doctor reviews your health and current medications before explaining whether it can be prescribed and how to take it. If visiting is difficult, the clinic can also check whether remote care is available for your situation.