Fibre: the unglamorous nutrient doing the heavy lifting

Fibre isn’t glamorous. It doesn’t come in shiny tubs or promise instant transformation.But it’s one of the most powerful nutrients we have for steady energy, gut health, hormone balance and long-term wellbeing.

Most of us were taught that fibre is just about “keeping things moving.” In reality, it has a far bigger job description — influencing cholesterol, blood sugar, appetite, inflammation and even how our brain talks to our gut.

So what is fibre actually doing inside the body — and why do so many of us struggle to get enough?

What fibre really does

Technically, fibre is a type of carbohydrate — but unlike starches and sugars, we can’t digest it ourselves as we don’t produce the enzymes needed to break it down.

Instead, fibre travels through to the gut where it becomes fuel for our gut bacteria. We have trillions of these bacteria lining the digestive tract, and they play a key role in:

• digestion and nutrient absorption

• immune balance and inflammation

• the gut–brain connection, affecting mood, stress response and focus.

In other words, fibre isn’t just about the bowel — it’s about whole-body communication.

Fibre and heart health

One of fibre’s most well-researched roles is supporting healthy cholesterol.

Soluble fibre forms a gentle gel in the gut that binds to cholesterol and helps carry it out of the body rather than letting it be reabsorbed into the bloodstream. This matters because higher levels of LDL cholesterol are linked with an increased risk of heart disease.

Beta-glucans — a type of soluble fibre found in oats and barley — are particularly well studied for this effect. That’s why a bowl of porridge isn’t just cosy; it’s quietly doing your heart a favour.

Steady energy, cravings and hormones

Fibre also slows the absorption of sugar into the bloodstream. That means:

• fewer energy crashes

• less 3pm sugar seeking

• steadier concentration

• better appetite control.

It supports hormone balance too, helping the body process and excrete hormones more effectively — something especially relevant during perimenopause and menopause.

And because fibre helps you feel fuller for longer, it naturally reduces the urge to graze when life gets busy or stressful.

Why busy lives make fibre harder

When pressure rises, fibre is often the first thing to slip — not because people don’t care, but because of how stress changes real-life eating.

• Meals get rushed or skipped

• Convenience foods take over

• Plant variety quietly disappears

• Stress itself alters digestion and gut motility

The result is a double hit: less fibre going in at exactly the time the body needs more support. The key point is this: under stress, fibre becomes more important — not less.

The two main types of fibre

There are two broad types of fibre:

Soluble fibre

Found in oats, fruit, beans, lentils and seeds:

• dissolves in water to form a gel;

• supports blood sugar stability;

• feeds beneficial gut bacteria;

• helps lower cholesterol.

  
  

Insoluble fibre

Found in wholegrains, nuts and many vegetables:

• draws water into the bowel; and

• supports gut movement and regularity.

  
  

Most plant foods contain a mix of both, which is exactly what the gut prefers.

How much do we actually need?

UK guidance: around 30g fibre per day

Reality: most adults manage 15–18g.

Consistency matters more than perfection. This is about adding, not restricting.

Think anchors, not numbers

• Add one “fibre anchor” to each meal – beans, lentils, veg, fruit or seeds

• Aim for plant variety rather than chasing a target

• Make small, realistic swaps:

• White toast → seeded or sourdough + toppings

• Breakfast cereal → yoghurt with berries and seeds

• Snack bars → nuts, fruit, oatcakes with hummus

  
  

Real-food examples (approx.)

• ½ cup lentils or chickpeas → 6–8g

• 1 apple or pear (skin on) → 4–5g

• 2 tbsp chia seeds → 7–8g

• 2 tbsp ground flaxseed → 4–5g

• 1 cup raspberries/blackberries → 7–8g

• 1 cup cooked broccoli → 5g

• 2 oatcakes + hummus → 3–4g

  
  

If you only change one thing this week, add one fibre-rich food per day — not to every meal, just one.

A word of caution

More fibre isn’t always better, especially if you increase it too quickly.

• Rapid jumps can cause bloating or discomfort

• Build gradually and drink enough fluids

• Supplements can be useful, but they don’t replace plant variety

• If fibre feels uncomfortable, slow down rather than giving up

Your gut needs time to adapt.

Breakfast ideas to get started

If you’d like an easy way to put this into practice, I’ve created a high-fibre, high-protein breakfast guide — each recipe provides at least 10g fibre and 20g protein, without complicated ingredients.

👉 Download the breakfast guide here: https://subscribepage.io/L2

The bottom line

Fibre is quiet, unsexy and profoundly powerful. It supports the systems that help you feel steady, focused and more resilient — especially in midlife and under stress.

Not a quick fix. But one of the best long-term investments you can make in your health.

If you’d like some personal guidance -

If you’re wondering how fibre fits into your wider picture — energy, hormones, digestion or cholesterol — I offer a free 30-minute discovery call.

A relaxed conversation where we can:

• look at what’s been going on for you

• explore practical next steps and testing where helpful

• see whether working together feels like the right fit

👉 Book a free discovery call here