Skip to content
DomDNA LAB

Food & gut health

Fibremaxxing: how to eat more fibre without overdoing it

By DomDNA · · 3 min read

You do not need a cupboard full of powders to eat more fibre. If fibremaxxing has caught your attention, the useful part is building more fibre-rich foods into meals you already enjoy. Chasing the largest number on a tracking app can wait.

What fibremaxxing means

Fibremaxxing is the social-media label for deliberately increasing fibre intake. The Guardian covered the trend in March 2026, including concerns about treating intake as a competition. It is a new name for a familiar nutrition topic, rather than a new medical treatment. [3]

The NHS adult target is 30g a day, with fibre coming from different foods. Its guidance links higher-fibre eating with digestive benefits and lower risks of several long-term conditions. That is population guidance, not a promise about what will happen to one person. [1]

Start with the meal that is easiest to change

The NHS suggests options such as wholegrain bread, oats, pulses, vegetables and potatoes with their skins. [1] Choose something you would willingly buy again. A food you dislike is unlikely to become a useful routine.

For an ordinary workday, your starting point might be breakfast because lunch is whatever you can grab between meetings. Or dinner might be easier because you cook for the household. Pick one meal, write down the change, and leave the rest of your shopping list alone for now.

Check the serving size on the packet when comparing foods. A per-100g figure and a per-portion figure answer different questions. Keep the comparison like-for-like rather than assuming the larger printed number means the better choice.

Give your gut time to adjust

NIDDK advises adding fibre gradually and having enough fluids to help it work. Your fluid needs depend on your health and circumstances; a fixed internet challenge is not a personalised target. A dietitian can help work out an appropriate approach. [2]

If you are following a prescribed diet or fluid restriction, check with your care team before changing it. You do not need to force yourself through discomfort to finish a challenge. Persistent or concerning digestive symptoms deserve a conversation with a healthcare professional.

Keep a useful note, not a perfect score

A short note can cover what changed, whether you liked the meal and whether it fitted your budget. You are trying to find an approach you can repeat. There is no need to turn every dinner into a data-entry task.

Before buying a fibre supplement, ask what problem you want it to solve and whether food changes would suit you. Bring the product label to a pharmacist or dietitian if you need help. Our free health quiz can help you organise topics to explore, but it cannot diagnose a gut condition or set your personal fibre requirement.

Sources

  1. NHS: getting more fibre
  2. NIDDK: fibre and constipation
  3. The Guardian: fibremaxxing, 30 March 2026

More from DomDNA Lab