Fibremaxxing: The TikTok Trend That's Actually Worth the Hype

The Vitl Nutrition Team / 4 Sept 2025

Plot twist: A social media trend that's actually backed by science! Here's why your gut microbes are cheering for fibremaxxing, and how to join the movement without the digestive drama.


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Hold onto your wholegrains, folks – there's a new wellness trend taking over your For You page, and for once, it's not asking you to drink celery juice at 5am! Say hello to fibremaxxing, the delightfully nerdy trend that's got everyone from registered dietitians to gut health enthusiasts absolutely buzzing.

With over 160 million views on TikTok, fibremaxxing is essentially what happens when Gen Z discovers that eating more fibre isn't just something your gran bangs on about – it's actually a superpower for your gut, brain, and overall wellbeing.

What exactly is fibremaxxing?

Think of fibremaxxing as the art of strategically boosting your daily fibre intake to hit (or even surpass) that golden 30g UK guideline – with many enthusiasts aiming for 40-50g daily. It's not about restriction; it's about getting creative with foods that make your gut bacteria absolutely thrive.

Picture swapping your usual white toast for seeded sourdough loaded with avocado and hemp hearts, or choosing a chia pudding that tastes like dessert but feeds your microbiome like a five-star meal. That's fibremaxxing in action!

Why the science-backed buzz?

Your gut houses trillions of microscopic residents who are essentially running a 24/7 fermentation party with the fibre you consume. When these beneficial bacteria feast on soluble fibre, they produce short-chain fatty acids – particularly butyrate – which are like premium fuel for your gut lining and have been linked to improved mood and metabolic health.

Here's the kicker: studies show that every extra 7g of daily fibre is associated with a 9% reduction in cardiovascular disease, stroke, and type 2 diabetes risk (Dietary fibre intake and risk of cardiovascular disease review). Not too shabby for something that grows in the ground!

The UK fibre reality check

Plot twist: according to the latest National Diet and Nutrition Survey, over 80% of UK adults are missing that 30g daily target (National Diet and Nutrition Survey). We're a nation of fibre underachievers, which means there's massive room for improvement (and feeling fabulous).

Your fibre upgrade strategy (minus the bloating)

Ready to join the movement? Here's how to level up without sending your digestive system into panic mode:

Start slow, win big

The golden rule: increase by 5g per week. Your gut bacteria need time to throw a proper welcome party for all that extra fibre!

Smart swaps that actually taste good

Quick wins:

  • Overnight oats with chia seeds and berries instead of regular cereal (+8g)
  • 50:50 brown rice and lentil mix over white rice (+6g)
  • Apple with almond butter instead of biscuits (+4g)
  • Seeded bread over white bread (+4g per slice)

The hydration hack

More fibre = more water needed. Think of fibre as a sponge – it needs adequate fluid to do its job properly. Aim for 2-3 litres daily when fibremaxxing, or you might find yourself more constipated than when you started!

The supplement question

While whole foods should be your first choice, supplements like psyllium husk can help hit higher targets. Just remember: take them away from medications (they can affect absorption), start slowly, and variety always wins – different fibres feed different bacterial strains.

Hold up – is fibremaxxing for everyone?

Here's where we need to pump the brakes a little! As much as we love a good gut health revolution, fibremaxxing isn't a one-size-fits-all solution. If you're dealing with frequent diarrhea, have been diagnosed with IBS, or experience other digestive issues, suddenly ramping up your fibre intake could be like adding fuel to an already sensitive fire.

For those with irritable bowel syndrome (IBS), particularly IBS-D (the diarrhea-predominant type), high-fibre foods can sometimes worsen symptoms rather than improve them. Similarly, if you're managing conditions like inflammatory bowel disease, diverticulitis, or have a history of bowel obstructions, a dramatic fibre increase definitely needs medical guidance first.

The golden rule in nutrition? Too much of anything – even the good stuff – isn't necessarily better. Your digestive system is wonderfully unique, and what makes one person's gut bacteria do a happy dance might make another's throw an absolute tantrum.

If you fall into any of these categories, chat with your GP or a registered dietitian before jumping on the fibremaxxing bandwagon. They can help you find the sweet spot that supports your gut without causing chaos!

The bottom line

Fibremaxxing might have a silly name, but the science is solid. This isn't about perfection – it's about nourishing the incredible ecosystem in your gut and supporting your energy, mood, digestion, and long-term health.

In a world of restrictive diet trends and expensive biohacking gadgets, there's something beautifully simple about the fact that beans, berries, and wholegrains might be the wellness upgrade you've been looking for all along.

So go ahead – embrace your inner fibre nerd. Just remember to start slowly, drink plenty of water, and maybe warn your housemates about the potential for increased... digestive activity during the transition period!

Christina

#LiveLifeBetter

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