Strong not Strict Nutrition

Fat loss is not just about creating an energy deficit. It is also about finding a way to live with it. If your meals leave you hungry an hour later, pushing harder is not always the most useful next step. Sometimes, it is worth looking at what is missing from the plate.

For me, one of those missing pieces was fibre. Not a miracle ingredient. Not another strict rule. Just a practical tool that helped make my diet more manageable.

The lesson I learned the hungry way

In previous bodybuilding preps, I under-prioritised fibre. I thought I could simply tolerate the hunger and keep pushing.

I was wrong. Hunger became one of the hardest parts of the diet.

During my 2026 prep, I took a different approach. Raspberries became a reliable staple, and I used psyllium husk as a targeted addition. Meals felt more substantial and hunger was easier to manage.

That is my experience – not proof that everyone will feel the same. Fibre did not cancel calories or guarantee fullness. It became one useful part of a plan that also managed total energy intake, included adequate protein and fitted my routine.

Fibre is a family, not one ingredient

Dietary fibre includes carbohydrates from plant foods that are not fully digested in the small intestine. Different fibres behave differently, which is why oats, beans, berries, wheat bran and psyllium are not interchangeable.

• Soluble fibre dissolves or disperses in water.
• Insoluble fibre does not dissolve in water and can contribute to stool bulk.
• Viscous fibre forms a gel, which can affect digestion and nutrient absorption.
• Fermentable fibre is used by gut microbes, which produce compounds such as short-chain fatty acids.

These categories overlap, and foods usually contain a mixture. The practical takeaway is simple: aim for variety rather than relying on one food or one scoop of powder.

Can fibre help with fat loss?

It can support the process. It does not replace the process. Fruit, vegetables, beans and lentils can help create larger, satisfying meals for a given amount of energy. Some viscous fibres may also help with fullness. But the effect depends on the fibre, the meal and the person.

A systematic review by Clark and Slavin examined 107 acute fibre treatments. Significant reductions in subjective appetite occurred in 39% of treatments; reductions in food or energy intake occurred in 22%. These were short-term studies, so they do not establish what happens to body weight over months.

In other words, “fibre can help” is fair. “Fibre guarantees you will be less hungry and lose weight” is not.

Fat loss still requires an energy deficit over time. Adding a high-fibre food on top of an otherwise unchanged intake does not automatically create one. The useful question is: How could this make your existing meals work better for you?

There is more to fibre than appetite

Fibre can influence stool bulk and consistency and support bowel regularity. A fibre-rich eating pattern also matters for long-term health: the NHS explains that eating plenty of fibre is associated with a lower risk of heart disease, stroke, type 2 diabetes and bowel cancer.

That is a reason to care about fibre even when fat loss is not your goal. It is also a reason to keep the focus on a varied eating pattern, not just an appetite-suppression trick.

Where psyllium fits – and where it does not

Psyllium is a predominantly soluble, viscous, gel-forming fibre. It can be a useful option for bowel regularity and, for some people, fullness.

A 2023 review and meta-analysis of six trials involving 354 adults with overweight or obesity reported a modest average reduction in body weight compared with controls. However, the authors were employees of the manufacturer of Metamucil, a psyllium-containing product, and several trial-quality domains were rated unclear. That does not automatically invalidate the findings, but it is important context – not a basis for promising results.

Those findings also do not prove that a specific retail product produces the same outcome, or that the results apply to lean athletes during competition prep.

I treat psyllium as a tool, not the foundation of the diet. Fruit, vegetables, legumes, whole grains, nuts and seeds provide combinations of fibre and other nutrients that an isolated fibre supplement cannot replicate.

If you use psyllium

• Follow the directions for the specific product and introduce it gradually.
• Take it with the recommended amount of fluid. Do not swallow it dry.
• Ask a pharmacist or clinician about medication interactions and timing.
• Seek individual advice if you have swallowing difficulties, unexplained gut symptoms or a diagnosed gastrointestinal condition.

Can you eat too much fibre?

Yes, at least relative to what you currently tolerate and need. A sudden increase can cause bloating, gas, cramps or changes in bowel habits. Very high intakes can also make it harder to eat enough energy, protein or dietary fat, particularly for athletes or people with smaller appetites.

The goal is not to win a fibre competition. It is to find an appropriate, tolerable intake that supports your health and your goal. Persistent symptoms need proper assessment, not simply more fibre.

A practical route towards 30g a day

UK guidance recommends 30g a day for adults; the NHS reports average adult intake at around 20g. You do not need to close that gap overnight.

A food-first approach could include the following. This is a meal framework, not a calculated 30g prescription: amounts vary with portions, brands and preparation.

• Breakfast: porridge with raspberries and chia seeds.
• Lunch: a wholegrain wrap with chicken or tofu, salad and beans.
• Dinner: lean mince with lentils or kidney beans, vegetables and rice, or a jacket potato with the skin.
• Snack: a pear or apple with a small portion of nuts.

Prefer white rice? Keep it and add beans or vegetables elsewhere. Enjoy a lower-fibre breakfast? Look for another useful opportunity later in the day. No single meal needs to do everything.

Start with one useful change

1. Add one fruit serving to breakfast.
2. Add beans or lentils to a familiar meal.
3. Try a higher-fibre version of one staple.
4. Add an extra vegetable serving.
5. Review your digestion before increasing further.

Use food labels to check fibre per portion. A manageable change you can repeat is more useful than an ambitious target that makes you uncomfortable.

My easiest prep upgrade: raspberries added volume, flavour and fibre without making the meal feel like a punishment. Psyllium was a targeted extra—not a substitute for the berries, vegetables and legumes.

Strong in evidence. Not strict in application.

Fibre supports the plan; it is not the whole plan. Start with foods you enjoy, increase gradually and adjust to your digestion. You do not need perfect meals or a rigid list of approved foods to make progress.

What is your easiest fibre upgrade this week: breakfast, lunch, dinner or snacks?

If you would like support putting the bigger picture together, find out more about the Rapid Fat Loss plan or get in touch with Strong Not Strict Nutrition. The goal is a useful next step – not another set of rules you cannot live with.

Sources and further reading

• NHS: How to get more fibre into your diet – adult guidance and practical food examples.
• Clark and Slavin (2013): The effect of fiber on satiety and food intake – a systematic review of short-term appetite and intake studies.
• Gibb, Sloan and McRorie (2023): Psyllium review and meta-analysis – interpret alongside the limitations and competing interests discussed above.

General education only, not individual medical advice. Requirements vary. Seek appropriate medical or dietetic support for persistent gastrointestinal symptoms, health conditions or medication questions.