Fibre nella dieta: perché sono fondamentali per l'intestino, metabolismo ed energia.
fibregastrointestinalegonfioreintestino

Fiber in the diet: why they are essential for the gut, metabolism, and energy.

3 min

In recent years, the debate on nutrition has focused mainly on one macronutrient: protein.

 

High-protein diets, protein snacks, protein breakfasts. But while we talk more and more about protein, there is a fundamental nutrient that often takes a backseat: fiber. 

However, their role in metabolic and intestinal health is central. 


How much fiber should we consume? 

 

Guidelines recommend an average of 25 – 30 grams of fiber per adult. 

The reality? 
Most of the population consumes less. 


This imbalance can affect: 

  • bowel regularity 

  • microbiota composition 

  • satiety 

  • glycemic control 

  • metabolic balance 


Fiber is not just for “going to the bathroom” 


Fiber performs much broader functions:  

 

  • Microbiota support:  

Fibers, especially fermentable ones, provide nourishment for the “good” bacteria in the intestine. A properly nourished microbiota contributes to: 

    • reducing excessive fermentation 

    • modulating inflammation

    • supporting the immune system 

 

  • Blood sugar control:  

Fiber slows down sugar absorption. 

This means: 

    • fewer blood sugar spikes

    • more stable energy

    • less sudden hunger 

 

  • Increased feeling of satiety 

Fibers increase the volume of the meal and prolong digestion. 

The result is a longer-lasting feeling of fullness, also useful in weight management programs. 

 

Soluble and insoluble fibers: what’s the difference? 

 

Not all fibers are equal. 

 

Insoluble fibers 

  • increase stool volume 

  • promote regularity 

Soluble fibers 

  • form a gel upon contact with water 

  • slow down nutrient absorption 

  • nourish the microbiota 

  • help to reduce abdominal bloating and tension 


Soluble fibers are particularly interesting because they act in a gentle way and are often better tolerated even by those with a sensitive bowel. 

 

What happens when fiber intake is insufficient? 

 

A diet low in fiber can promote: 

  • alterations of the microbiota 

  • bloating and fermentation 

  • glycemic instability 

  • reduced feeling of satiety 

  • difficulty in weight control 


In other words: it's not just an intestinal issue. It's a metabolic issue. 

 

Among the main causes of lower fiber consumption, we find: 

  • excess of refined foods 

  • reduced consumption of legumes 

  • little variety of vegetables 

  • diet unbalanced towards ultra-processed foods 


Often the problem is not a lack of awareness, but the difficulty of daily reaching the recommended intake. 


How to increase fiber intake correctly 


Some practical tips: 

  • include legumes at least 2–3 times a week

  • prefer whole grains

  • increase vegetable consumption at every meal

  • hydrate adequately 

  • increase fiber gradually

     

Too rapid an increase can cause temporary bloating. Gradualness is key. 

 

When can nutraceutical support be useful? 

 

In some cases, despite a good diet, it can be difficult to reach the ideal fiber intake. 

 

Targeted support can help to: 

  • improve regularity 

  • support the microbiota 

  • promote more balanced digestion 

  • reduce bloating 

Always as part of a balanced lifestyle and, if necessary, with the support of a nutrition professional. 

 

Proteins are important, but without fiber, metabolic and intestinal balance is not complete. 

Fibers are not a diet detail: they are a silent foundation of our daily well-being. 

Increasing fiber intake through diet always remains the first choice.


But in daily life, it's not always easy to reach the recommended 25-30 grams every day.

In these cases, targeted nutraceutical support can help supplement fiber intake, supporting:

  • intestinal regularity

  • microbiota balance

  • blood sugar control

  • a feeling of lightness after meals

Plas Fibra is formulated with selected soluble fibers, designed to act gently and promote a gradual and well-tolerated intestinal balance.

Included in a varied and balanced diet, it can be a concrete ally to bring fiber back to the center of your daily diet.

 

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