You add seeds to breakfast, choose a high-fibre snack at lunch and cook a generous bowl of chickpeas for dinner. It sounds like a healthy day. By bedtime, your stomach feels tight and uncomfortable.
That is where the fibremaxxing trend can become confusing. Eating more fibre can be beneficial, but changing too much at once may leave you feeling worse.
Fibremaxxing means deliberately increasing the fibre in your diet. For most UK adults, the general recommendation is 30g a day. A gradual approach is more sensible than suddenly chasing the highest number possible.
Here is what the evidence says, how to make practical changes and when general advice may not suit your digestion.
What is fibremaxxing?
Fibremaxxing is a social-media term for making fibre a bigger priority in everyday meals. It usually involves eating more vegetables, fruit, pulses, wholegrains, nuts and seeds. Some people also use products with added fibre.
It is not a standardised diet or a medical treatment. There is no official fibremaxxing programme that everyone needs to follow.
The useful idea is to pay attention to a nutrient that can be easy to overlook. You can do that with familiar foods and manageable portions.
What does scientific evidence say about fibre?
Dietary fibre includes plant carbohydrates that our digestive enzymes do not fully break down. Some reaches the large intestine, where microbes ferment it and produce compounds called short-chain fatty acids.
Different fibres behave differently. Some help stools retain water, some add bulk, and others are readily fermented. This is one reason two foods containing similar amounts of fibre can feel different in your digestive system.
A series of systematic reviews and meta-analyses published in The Lancet found that higher fibre intake was associated with lower rates of several chronic diseases and premature death.
Those findings support a fibre-rich eating pattern over time. They do not mean that one food prevents disease or that a supplement guarantees the same benefits. Much of the long-term evidence comes from observational research, where other lifestyle differences can influence the results.
Research continues to explore how different fibres affect the gut. A September 2026 feature from UK Research and Innovation describes researchers using laboratory gut models to study fibre ingredients, fermentation and gas production.
This work can help develop foods, but laboratory findings do not establish that a particular product will improve everyone’s digestion.
How much fibre should you eat each day?
The NHS recommends 30g of fibre a day for adults as part of a balanced diet. Children have different requirements.
If you currently eat much less, you do not need to reach that amount overnight. Start with one manageable change.
Food labels can help you understand your intake. Check whether the fibre value refers to 100g or the portion you actually eat.
For example, if a cereal contains 10g of fibre per 100g, a 40g serving provides 4g. The large number on the packet is not necessarily the amount in your bowl.
Why can eating more fibre cause bloating?
Gut microbes produce gas as they ferment certain carbohydrates. A sudden change in what you eat can therefore leave you feeling gassy or uncomfortable.
Worcestershire Acute Hospitals NHS Trust advises increasing fibre gradually, making one change at a time to help reduce wind, bloating and stomach upset.
Portion size matters too. A few spoonfuls of lentils and a large bowl can produce different responses.
Adding a fibre drink, a snack bar, extra seeds and a large serving of beans on the same day also makes it difficult to identify which change caused discomfort.
Bloating is not a reason to keep increasing your intake in the hope that more will solve it.
How to increase fibre gradually
Choose a meal you already enjoy and make one small adjustment.
| Your usual meal | A change you could try |
|---|---|
| Yoghurt for breakfast | Add a modest serving of oats or fruit |
| White toast | Try wholemeal bread |
| Tomato pasta sauce | Stir in a small amount of cooked lentils |
| A curry with few vegetables | Add a vegetable side |
| An afternoon snack | Choose fruit or a small portion of unsalted nuts, if suitable for you |
These are options, not a checklist to complete in one day. Choose foods that fit your allergies, preferences and any dietary advice you have received.
Give each change time
Notice how you feel before adding another change. If a larger portion consistently causes discomfort, try a smaller amount instead of forcing yourself to finish it.
Drink fluids regularly
Fluids matter when you increase fibre. Drink regularly throughout the day, unless a clinician has advised you to restrict your fluid intake.
Notice useful patterns
A short note of the food, portion and symptoms can help you identify what you tolerate.
For example, a small serving of chickpeas might feel comfortable while a much larger portion does not. That observation is more useful than assuming every food containing fibre will cause problems.
Everyday foods that can contribute fibre
You do not need specialist snacks to begin. Familiar foods can contribute to your daily intake.
Useful options include:
- Porridge oats.
- Wholemeal bread or wholewheat pasta.
- Lentils, beans and chickpeas.
- Fresh or frozen vegetables.
- Fruit you enjoy.
- Unsalted nuts and seeds, where suitable.
Choose a few foods you will actually use. There is little benefit in buying unfamiliar ingredients that remain at the back of the cupboard.
You might start with porridge at breakfast or a small amount of lentils added to a sauce. Build variety as you find combinations that suit you.
How do fibre and protein fit together?
A balanced meal can contain both. You do not have to choose one nutrient at the expense of the other.
Eggs with wholemeal toast, or tofu with vegetables and brown rice, are simple examples. Beans and lentils provide both protein and fibre, although the portion that suits your digestion may vary.
If you are reviewing your protein intake as well, read Majra Health’s guide to protein for weight loss: how much do you actually need?.
Consider the whole meal rather than buying a product solely because one nutrient is highlighted on the front of the packet.
What if you have IBS or a sensitive gut?
General advice about increasing fibre needs adapting when symptoms are persistent.
The NHS guidance on IBS explains that no single diet works for everyone. Advice can differ depending on whether constipation, diarrhoea or bloating is your main problem.
Oats may be helpful for some people. However, adding lots of wholegrains can be unhelpful for someone struggling with diarrhoea.
If you need to avoid many foods to control symptoms, ask your GP about support from a registered dietitian. If you have been prescribed a restricted-fibre diet, follow your clinical team’s advice before increasing your intake.
When should you get medical advice?
Persistent bloating should not automatically be blamed on eating healthier food.
NHS advice recommends seeing a GP if you are regularly bloated, symptoms continue despite dietary changes, or you have bloating with unintentional weight loss or blood in your stool.
Seek urgent medical advice for bloating with vomiting or an inability to pass stool or gas. A swollen stomach with sudden, severe abdominal pain needs emergency assessment.
Frequently asked questions
Do I need a fibre supplement?
Not simply to follow the trend. Ordinary foods can contribute towards your daily intake. If symptoms or dietary restrictions make that difficult, ask a pharmacist or registered dietitian about an appropriate approach.
Is more fibre always better?
An extreme intake is not the goal. The amount, food type and your tolerance all matter. Aim for a balanced routine you can maintain comfortably.
How quickly should I increase fibre?
There is no timetable that suits everyone. Introduce one manageable change, notice your response and adjust before adding another. Persistent discomfort deserves attention rather than a higher target.
Should I stop eating fibre if I feel bloated?
Avoid assuming that every fibre-containing food is a problem. Review how much you changed and the portions involved. If symptoms continue, seek advice rather than cutting out large groups of foods yourself.
Where to start tomorrow
Look at one meal you eat regularly. Could you add some fruit, try a wholegrain version or include a small portion of pulses?
Start there. Build variety over time and pay attention to your digestion. A comfortable, consistent routine is more useful than an impressive fibre total you cannot maintain.
For more practical nutrition and wellbeing articles, explore the Majra Health blog.
This article provides general educational information and does not replace personalised medical or dietetic advice. Read our editorial policy and disclaimer for more information.
Sources and further reading
- NHS: How to get more fibre into your diet
- Reynolds and colleagues: Carbohydrate quality and human health — The Lancet, 2019
- UKRI: How modelling the gut can bring us healthier food and drinks — September 2026
- Worcestershire Acute Hospitals NHS Trust: High Fibre Diet
- NHS: Diet, lifestyle and medicines for IBS
- NHS: Bloating
Vipin Sharma is a UK-based Food Technologist and wellness-focused content creator with over 5 years of experience in food safety, nutrition awareness, and quality assurance within regulated food environments. He shares research-backed health insights to help people make informed lifestyle and diet choices.
His work focuses on translating complex nutrition and health information into simple, practical guidance that can be applied in everyday life. His content is informed by scientific literature, public health guidance, and real-world industry experience.
Vipin promotes a balanced, evidence-based approach to wellness, encouraging sustainable habits and long-term health rather than quick-fix solutions.