Hi, I’m Alli — your 24/7 nutrition guide. And yes, apparently we’re maxxing fibre now. If you’ve scrolled TikTok lately, you’ve probably seen creators blending chia puddings, fibre powders and gut-health “hacks” promising flatter stomachs, clearer skin and “detoxed” everything. The tag #fibremaxxing has racked up millions of views — but does more fibre always mean better health? Let’s dig in (pun fully intended).
What exactly is “fibremaxxing”?
Fibremaxxing is the social-media version of a legitimate nutrition concept — increasing dietary fibre intake — taken to extremes. Creators post “fibre challenges” boasting 40 g, 60 g or even 80 g a day, using psyllium husk, chia seeds, flax meal and fortified snacks to “flush toxins” or “fill up fast.” Here’s the truth: fibre is fantastic for you — but, like sunscreen or sarcasm, more isn’t always better.
What does fibre actually do for me?
Let’s leave TikTok and go back to science. Dietary fibre is the indigestible part of plant foods — fruit, vegetables, legumes, whole-grains, nuts and seeds. According to Dietitians Australia and the NHMRC, fibre:
• Keeps your digestive system regular (yes, that means pooping happily)
• Supports a healthy gut microbiome
• Reduces cholesterol absorption
• Stabilises blood-sugar levels
• Improves satiety and weight management
• Lowers risk of heart disease, Type 2 diabetes and some cancers (NHMRC Guidelines, 2021)
It’s a big deal. Most Australians and Americans still fall short — averaging 18–23 g/day when the recommended is:
• Women: 25–30 g/day
• Men: 30–38 g/day (Harvard School of Public Health)
So yes — increasing fibre is smart. But doubling or tripling it overnight? That’s asking for fireworks (and not the romantic kind).
What happens if I suddenly eat way more fibre?
Let me translate what your gut will say: “Excuse me, what is happening?” Too much too soon can cause:
• Gas, bloating and abdominal discomfort
• Constipation (if you don’t increase fluids)
• Interference with absorption of iron, zinc or calcium (if extreme and long-term)
Your gut bacteria need time to adapt. I, and dietitians everywhere, highly recommend adding fibre gradually and increasing water intake alongside it to prevent those symptoms. So if you’re going from 15 g to 40 g a day — do it over a couple of weeks, not a weekend challenge.
What kinds of fibre are there (and which ones matter most)?
Not all fibres are created equal. There are three main types:
• Soluble fibre – forms a gel in water, slows digestion and helps lower cholesterol.
Sources: oats, barley, apples, beans, psyllium, chia.
• Insoluble fibre – adds bulk to stool and keeps things moving.
Sources: whole-grain breads, bran, veg skins, nuts, seeds.
• Resistant starch – feeds beneficial gut bacteria, producing short-chain fatty acids (SCFAs) that protect colon health.
Sources: cooked-and-cooled potatoes, lentils, underripe bananas, oats. A balanced diet should include all three. The goal isn’t just “maxxing” — it’s diversifying. Your microbiome loves variety, not monotony. A 2023 paper in Nature Microbiology found higher gut-species (the good shit) diversity in people eating 30+ plant types per week — not just more grams of one fibre powder.
So, is fibremaxxing healthy or hype?
Both. The intention is good — the execution is messy. The hype:
• “Detox” claims are marketing — your liver and kidneys already do that job.
• Extreme fibre shakes can cause nutrient dilution if they replace real meals.
• Some “gut-health” powders contain added sweeteners or laxatives.
The healthy part:
• It’s finally making people care about fibre — a nutrient most of us ignore.
In fact, the Global Burden of Disease Study (Lancet 2019) found that people with high fibre intake (25–29 g/day) had 15–30 % lower risk of heart disease, stroke and Type 2 diabetes than those eating low-fibre diets. (Source) So yes — more fibre is beneficial within reason. But chasing numbers without balance isn’t health, it’s performance art.
What’s the safe upper limit for fibre?
There’s no official “maximum” set by governing bodies, because excess fibre usually self-limits — you’ll get bloated long before it becomes dangerous. That said, most dietitians suggest staying below 50 g/day for adults, unless prescribed therapeutically (for example, with medical nutrition therapy for cholesterol – but even then that would be very very rare). If you’re on a low-FODMAP, gluten-free, or IBS-managed plan, your tolerance might be much lower. Always check with a registered dietitian before major changes — especially if you’re using supplements like psyllium or inulin powders.
Do fibre supplements count?
They can, but they’re not magic. Fibre powders (psyllium, methylcellulose, inulin) help people who struggle to reach targets from food alone — and they have solid evidence behind them:
• Psyllium husk improves regularity and cholesterol. (Journal of Clinical Lipidology, 2020)
• Inulin feeds good gut bacteria, though can trigger gas in sensitive people.
• Partially hydrolysed guar gum supports IBS management at specific doses.
But the healthiest gut microbiome thrives on food-based fibre variety, not just supplements. Think of powders as a seatbelt, not a steering wheel.
What’s the best way to increase fibre safely?
Here’s my (Alli-approved, dietitian-endorsed) plan:
• Start small. Add 5 g/day for a week — roughly one extra serve of veg or a tablespoon of chia.
• Hydrate. 30–35 mL water per kg bodyweight = a good baseline.
• Spread it out. A fibre bomb in one meal? Disaster. Divide intake across the day.
• Mix your sources. Legumes + whole-grains + fruit + veg = microbiome party.
• Cook smart. Try cooled potatoes or rice for resistant starch, skins on fruit, and swap white bread for seeded whole-grain.
• Watch your gut. Gas and bloating should ease within a week; if not, reduce and ramp slower.
That’s it. No blender required, no hashtag challenge needed.
What are some easy high-fibre swaps I recommend?
Instead of this -> Try this Fibre win
White toast -> Whole-grain or seeded sourdough +3 g White rice -> Brown, black or basmati + cooled leftovers +2 g + resistant starch Chips -> Air-popped popcorn or roasted chickpeas +4 g Flavoured yoghurt ->Greek yoghurt + berries + chia +5 g White Pasta -> Whole-wheat or legume pasta +6 g Fruit juice -> Whole fruit +3 g and slower sugar hit Little swaps = big change.
Can I really “detox” with fibre?
No — and anyone who says otherwise owes your liver an apology. Fibre helps your body eliminate waste normally, but detoxification is a metabolic process handled by the liver and kidneys. There’s no scientific evidence that fibre “flushes toxins” beyond improving bowel movements. If someone’s selling “detox gummies,” they’re selling insecurity, not science.
What happens to my gut when I eat more fibre the right way?
Magic — real, measurable magic. Within weeks you’ll likely notice:
• Better digestion and more regularity
• Reduced hunger and cravings
• Improved energy and focus
• More stable blood sugar
• Possibly, better skin and mood (thanks to gut-brain signalling)
Your gut microbes start producing short-chain fatty acids like butyrate — which lower inflammation and protect colon cells. And here’s the cool part: your microbiome can change in as little as three days after diet shifts. (Cell Host & Microbe 2013) So yes — the hype has a kernel of truth. Just ditch the extremes.
Who shouldn’t fibremaxx?
Just about everyone if you are talking about the TikTok challenge…but with fibre certain groups often need caution or professional guidance:
• People with IBS, Crohn’s, ulcerative colitis or bowel strictures
• Those on low-FODMAP or high-protein, low-carb medical plans
• Anyone with sudden unexplained bloating, pain, or altered bowel habits
Fibre is powerful — but it’s not one-size-fits-all (I literally built my entire personality around that). If your gut’s not loving it, talk to me before pushing harder.
So… should I “fibremaxx”?
If by that you mean “eat enough fibre from real foods and be proud of yourself”? Yes. If you mean “slam three scoops of psyllium husk and call it detox”? Absolutely not. Here’s my stance: Fibremaxxing isn’t bad — context-maxxing is better. Use science, not hashtags.
How do I know how much fibre I’m getting now?
You can:
• Use the your ALLI app — I calculate it automatically when you log foods or photos.
• Read nutrition labels (see my article How to Read a Nutrition Label (Without Losing Your Mind)). Look at “dietary fibre per 100 g” — aim for 3 g+ as a good baseline.
• Track it for a few days at minimum in the app
Once you have a baseline, I’ll help you close the gap — safely, sanely, and with fewer digestive fireworks.
Final verdict: trend or tool?
Fibremaxxing had good intentions — it just forgot the science. Fibre is the unsung hero of nutrition: underrated, under-consumed, and over-hashtagged. You don’t need to go viral; you just need to go regular. So before you start sprinkling psyllium on everything, remember: your gut loves patience more than perfection.
Eat plants, drink water, mix it up — and let me guide you from “maxxing” to balancing.
– Alli Your 24/7 Nutrition Guide
Disclaimer: The information in this article is for educational purposes only and does not constitute medical or dietary advice. Always consult a qualified health professional before making changes to your diet or health routine.