© Shkraba Anthony
October 20, 2025
Sharon Burbat
Fuller for longer, less hunger, and a better immune system – the promises of Fibre-Maxxing sound so enticing. But is it really that simple? A check.
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Nutrition trends are not uncommon on social media, and currently, everything revolves around fiber. In focus: Fibre-Maxxing (sometimes also called Fibermaxxing). At its core, it means the conscious, significant increase in daily fiber intake beyond the classic recommendations to take health, immune defense, and metabolism to a new level. However, this is not healthy for everyone.
“Fibre Maxxing” is a nutrition trend that is currently attracting attention, especially in nutritional medicine, dietetics, and on social media. The term describes the targeted attempt to maximize the fiber content in the daily diet – not through supplements, but through natural, whole foods.
Why? Because fibers are repeatedly associated in studies with numerous health benefits – including improved gut health, more stable blood sugar levels, a lower risk of cardiovascular diseases, and even a longer life expectancy.
Fibers (also known as “dietary fibers”) are indigestible components of plant foods. A distinction is made between soluble and insoluble fibers. While soluble fibers swell in the digestive tract and enhance the feeling of fullness, insoluble fibers increase stool bulk and stimulate bowel activity. They ensure that the stool passes through the intestine more quickly. Fibers have a variety of positive effects:
The German Nutrition Society (DGE) recommends that adults consume at least 30g of fiber daily. In reality, many people fall significantly short of this.
Fibermaxxing is not about complicated diet plans, but rather about conscious, simple changes:
1. Whole grain instead of white flour
Replace white bread, pasta, or rice with whole grain variants. The difference in fiber content is enormous.
2. More legumes
Lentils, chickpeas, black beans & co. not only provide fiber but also high-quality plant protein and micronutrients.
3. Vegetables in every meal
Whether raw, cooked, or fermented – vegetables should be the basis of every meal. Particularly high in fiber: broccoli, kale, carrots, parsnips.
4. Fruit, but with skin
Berries, apples, pears, plums: All these fruits are high in fiber – provided they are eaten unpeeled.
5. Nuts, seeds & grains
Chia seeds, flax seeds, almonds, walnuts: they contain valuable fatty acids as well as many soluble fibers.
Fiber maxxing is generally suitable for all age groups. However, those who particularly benefit include:
Attention: In cases of irritable bowel syndrome, chronic inflammatory bowel disease, or after bowel surgery, a high-fiber diet may exacerbate symptoms. Individual medical consultation is therefore essential in these cases.
Every gut reacts differently. A sudden strong increase in fiber intake can lead to bloating, feeling of fullness or abdominal pain cause. The solution: gradual increase and sufficient liquids (at least 1.5–2 liters of water daily) so that the fibers can swell well. Especially in children, older people, and individuals with impaired kidney function, fiber consumption should only be increased cautiously.
Fiber Maxxing is not a cure-all. It can support many positive effects, but it cannot cure existing diseases or replace medications alone. The effect unfolds in the long term and especially in conjunction with other healthy lifestyle factors such as exercise, stress regulation, and sleep quality. Moreover, the overall quality of the diet plays an important role. Fiber alone is not sufficient if, for example, sugar and fat content are very high or other nutrients are lacking.
Not all fibers work the same way. There are soluble and insoluble fibers that perform different functions in the body. A one-sided intake or heavily processed "high fiber" products from the supermarket can lead to an unbalanced fiber profile. Therefore, diversity is crucial. Not every type is equally well tolerated.
Dietary supplements are available not only for vitamins but also for fibers. However, it is generally healthier to consume fibers in the form of natural foods, as this also includes other nutrients. A tip among fans of Fiber-Maxxing: psyllium husks.
Fibre maxxing – understood as the deliberate increase in fiber intake – is a scientifically based strategy to optimize nutrition in everyday life. It is sensible and easy to implement if you start slowly and observe your own body. But as with any health trend, individuality matters. Not every recommendation is suitable for everyone.
For those who want to specifically benefit from fibre maxxing, a professionally supervised adjustment is recommended, especially in cases of pre-existing conditions or sensitive digestion.
