By Selina Rose, RHN, FDN-P
A Common Gap in Modern Nutrition
Fibre is one of those nutrition topics that most people feel familiar with, yet it remains one of the most under-consumed and misunderstood nutrients in the modern diet.
In my work as a holistic nutritionist and functional diagnostic nutrition practitioner, I see this pattern often. People prioritize protein, eat whole foods, and take supplements, yet digestion still feels off. Energy is inconsistent. Blood sugar fluctuates. Bowel habits are irregular.
Very often, fibre is the missing foundation.
What Fibre Actually Does in the Body
Dietary fibre refers to the parts of plant foods that the human body cannot fully digest or absorb. Instead of being broken down like carbohydrates or fats, fibre moves through the digestive tract, where it supports digestion, metabolism, and elimination.
Fibre is commonly grouped into two categories.
Soluble Fibre
Soluble fibre dissolves in water and forms a gel-like substance in the digestive tract. This type of fibre supports:
- Blood sugar regulation by slowing glucose absorption
- Cholesterol balance through bile binding
- Gut microbiome health by feeding beneficial bacteria
- Stool consistency and bowel regularity
Insoluble Fibre
Insoluble fibre adds bulk to stool and supports movement through the digestive tract, helping maintain regular bowel movements.
Most whole plant foods contain a combination of both. Digestive health tends to improve when fibre intake includes a variety of sources rather than relying heavily on one type.
How Fibre Feeds Beneficial Gut Bacteria
One of fibre’s most important roles is its relationship with the gut microbiome. Certain fibres (like psyllium) act as prebiotics, meaning they provide nourishment for beneficial bacteria living in the digestive tract.
When these bacteria ferment fibre, they produce short-chain fatty acids that help support:
- Gut lining integrity - keeping it strong and intact
- Immune system regulation
- Metabolic health (supporting cells to absorb nutrients, create energy, and release waste efficiently)
- Communication between the gut and the brain
Because of this, fibre’s influence extends far beyond digestion. A well-supported microbiome plays a role in inflammation levels, blood sugar balance, and even mood and cognitive health.
How Much Fibre Do You Need?
General fibre guidelines suggest an intake of approximately 25 to 38 grams of fibre per day, depending on age and sex. These recommendations are based on national dietary guidelines, including those used in Canada.
These targets reflect total daily fibre intake from food and supplemental sources combined. Individual needs may vary based on digestion, activity level, and overall health.
Despite these recommendations, most people still fall short. Common reasons include:
- Diets dominated by processed foods
- Limited diversity in plant intake
- Digestive discomfort that leads to fibre avoidance
- Choosing foods that are perceived as healthy but contain little to no fibre, such as fresh-pressed juices
It is also common for people to assume they are getting enough fibre while relying on a narrow range of foods or avoiding fibre due to bloating or constipation.
Fibre and Bowel Regularity
Fibre plays a central role in bowel regularity, stool quality, and elimination. Adequate intake supports:
- More consistent bowel movements
- Improved stool form
- Efficient removal of metabolic waste
Bowel regularity might sound simple, but it matters more than you think. If you've ever been constipated or felt like you needed to stay near a bathroom because your bowels are unpredictable, you know how much bowel regularity improves your quality of life and how you feel in your body.
Still, tolerance matters here. Some fibres ferment rapidly and can contribute to gas or bloating, particularly for individuals with sensitive digestion. Fibre that is gentle, slowly fermenting, and derived from whole foods, like psyllium, is often better tolerated for daily use.
How Fibre Supports Whole-Body Health
Fibre influences multiple systems throughout the body, including:
- Blood sugar balance by slowing digestion and glucose absorption
- Cholesterol metabolism through bile binding
- Hormone clearance by supporting elimination
- Natural detoxification by binding waste products in the digestive tract
When digestion and elimination are supported, the body is better able to absorb nutrients from food and supplements. This is why fibre is often foundational when addressing energy levels, metabolic health, or hormone balance.
Fibre Quality Matters
Fibre sources vary widely in how they affect the body. Whole-food fibres offer a complex matrix of nutrients that tend to work more gently and synergistically.
Fibre that comes from diverse plant sources is often:
- Easier to tolerate long term
- More supportive of microbial diversity
- Simpler to incorporate consistently into daily routines (you're not just mixing it with water daily)
For many people, consistency is the key factor. Fibre that fits easily into daily habits and hides in meals is more likely to deliver meaningful benefits over time.
Support Your Fibre Intake with Natura Fibre
For individuals looking to support digestion, regularity, and overall gut health, a whole-food fibre blend is a practical and effective option.
Natura Fibre is formulated using a blend of organic, plant-based fibre sources that provide both soluble and insoluble fibre. This combination supports bowel regularity while also nourishing the gut microbiome.
Because it is derived from whole-food ingredients and designed for gentle daily use, Natura Fibre tends to be well tolerated, even for those with sensitive digestion. It can be easily added to meals or routines without requiring major dietary changes, making it a realistic option for long-term consistency.
For many people, using a daily fibre blend alongside a whole-food diet helps bridge the gap between recommended fibre intake and what is realistically achieved through food alone.
The Takeaway
Fibre is a foundational nutrient that supports digestion, metabolic health, detoxification, and overall wellbeing.
When chosen thoughtfully and used consistently, fibre can:
- Improve bowel regularity
- Support blood sugar and cholesterol balance
- Nourish the gut microbiome
- Enhance nutrient absorption
- Provide a stable foundation for long-term health
Supporting the gut is often one of the most impactful starting points, and fibre remains one of the simplest and most effective tools to do so.
Sources:
1. Fibre intake recommendations are based on Adequate Intake values from Health Canada’s Dietary Reference Intakes.
2. Dietary Reference Intakes for Energy, Carbohydrate, Fibre, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids (Institute of Medicine)
About The Author:
Selina Rose is a Registered Holistic Nutritionist (RHN), Functional Diagnostic Nutrition Practitioner (FDN-P), and health educator specializing in gut health, digestion, and metabolic wellness. She is the founder of Bloat Babes a gut health education platform that helps women understand and resolve bloating through evidence-based nutrition, functional testing, and lifestyle support. Selina works with clients and brands to translate complex nutrition science into practical, sustainable daily habits.
