Thought we would give Iofibrewater a try after it was recommended to me. Everything from ordering on the website to payment and delivery was top class. We tried the strawberry flavour and the lemon... See more
Company replied
While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more
To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more
Review summary
Created with AI, based on recent reviews
What people talk about most
Reviews shaping this summary
New label, improved flavour, received latest subscription order today. Always prompt, delivered straight into my garage. Always easy to deal with these guys. Always delicious to drink, and always sati... See more
Company replied
Arrived well packaged and very quickly. Was worried the flavours would be OTT but the lime is very subtle (thank goodness) and the strawberry is muted. Got the lemon and lime first and a mixed box nex... See more
Company replied
I’ve been a fan of ió drinks for a while now, and they’ve become a regular part of my routine. I love that they make it so easy to boost my daily fibre intake with no effort, no fuss, just a genuin... See more
Company replied
Company details
Written by the company
Meet ió: Award-Winning Gut-Healthy Hydration. At The Prebiotic Company Ltd, we’re obsessed with gut health, and ió is our breakthrough. Winner of the World Best Drink Innovation Award, ió isn’t just a drink, it’s hydration with purpose. Powered by science and designed for your gut, ió delivers 100% of your daily prebiotics and 20% of your fibre RDI in every bottle. It’s a wise choice for those seeking improved digestive health, but the benefits don’t stop there. Clinical studies show ió helps lower blood sugar levels, boost mood and sleep, support weight management by reducing BMI, and increase friendly gut bacteria (probiotics). It’s also proven to ease IBS, bloating, and constipation. ió is crystal-clear with a light burst of natural fruit flavour: no artificial ingredients, just clean hydration. With only 0.6g of sugar, it’s keto-friendly, diabetic-safe, and 100% vegan. Research from our ió 12-Day Challenge shows that by Day 4, participants feel fuller for longer, eat less at meals, snack less, and experience fewer digestive issues. Many report improved regularity, for themselves and their kids, along with better sleep and a more balanced mood. Making the switch to ió is easy. It’s a simple, enjoyable upgrade to your daily drink. It's refreshing, delicious, and proven to do real good for your body. ió doesn’t just taste great...it works. Try it for yourself and see why so many people say they love ió. Your gut will thank you.
Contact info
Third Floor, 3 Hill Street, EH2 3JP, Edinburgh, United Kingdom
- hello@iofibrewater.co.uk
- iofibrewater.co.uk
4.7
Excellent
130 reviews
Asks customers to review
This company invites their customers to review, whether positive or negative
Replied to 100% of negative reviews
Typically replies within 48 hours
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
The new flavour has grown on me
I was unsure about the new flavour, but it has grown on me. The big benefits for me are, I no longer clear my throat after drinking it and I also used have to pee urgently and that has gone with the new recipe.
I drink a bottle a day keeping my digestion feeling so much easier. Even though the flavour has changed, I still wouldn't miss a day without it.
Well done IO for continually improving this life changing drink.
July 9, 2025
Unprompted review
Reply from ió Gut Health Drink
Hi Isobel,
Thank you so much for your review.
We're delighted that not only are you enjoying the new flavour, as well as the new and improved, clean ingredient profile is having an improved effect not only on your digestive system as well as not having to pee urgently (yippee!) or an adverse effect on your throat.
Thank you so much for taking the time to write this and for sharing the ió love. 💗
Gutfully yours,
Team ió 💧
Ordering and delivery great
Ordering and delivery great. Wonder if you have changed flavouring as does taste different and not so pleasant to me
June 30, 2025
Reply from ió Gut Health Drink
Hi Pat, thank you for your feedback We're delighted that you found the delivery and ordering great and sorry to read that you're not enjoying the flavour as much.
Yes, we have changed our recipe and taken erythritol out to create an even cleaner label. We take our customer's feedback on board very seriously and our product development person has been made aware of your comment.
Of course every body's taste is subjective, feedback from people who have had ió in the past and the new bottles have found that after a few days they enjoy the new recipes better, it just took them time to adjust. We do hope you'll consider trying it for longer, (and of course continuing to get the great, clinically proven health benefits that go with ió, too!)
Gutfully yours,
Team ió 💧
io Fiber water.
The Product did what it said. Improved Digestive Health, Pooping, Mood, Sleep. My Energy/Mental Wellbeing levels improved. I will be ordering more and suggesting to friends/family.
June 12, 2025
Reply from ió Gut Health Drink
Hi Colleen,
Thank you so much for your review! We're thrilled to hear that ió delivered on its promise and made a real difference in your digestion, sleep, mood, and energy levels. That's exactly what we aim for.
We truly appreciate your support and recommendation—it means a lot. Looking forward to helping you (and your friends and family!) feel even better in the future.
Gutfully yours,
Team ió 💧
love it so much
The change to the flavours is so much better more subtle but more natural. And the new label design is clean and easier to see the flavours
June 21, 2025
Unprompted review
Reply from ió Gut Health Drink
Hi David,
Thank you so much for the lovely review! We’re so glad you’re enjoying the updated flavours—they were designed to be more natural and refreshing, so it means a lot to hear your feedback. And we're thrilled you like the new label too—cleaner, clearer, and still very much ió 💚
Gutfully yours,
Team ió 💙💧
Subscription cancelled
Again I haven’t received my order despite being assured the issue had been rectified.
Will source alternative replacement as company can’t stick to arrangement.
Love the product itself though unfortunately 💁🏼
June 13, 2025
Reply from ió Gut Health Drink
Hi Mandee, we're sorry to hear about your latest order. It should have arrived by the 18th of June (today) at the latest, 12 days after you received your last order on the 6th of June.
Sadly, the courier, Yodel, has informed us your parcel was damaged in the depot so it didn't go out for delivery. As per the tracking link on your order the parcel was damaged on the 16th of June and sent back to us. We have dispatched another case to you and one free of charge to make up for the inconvenience.
We did rectify the issue so cases would arrive every 12 days but, unfortunately, the courier dropped the ball here on their end so the parcel is now late. If not for the damage to the parcel it would have been with you on the 16th of June.
Please accept our apology and enjoy the free case on us. This should arrive with you Friday 20th all being well. We're saddened that you have cancelled your subscription as like you say it's a good product.
Warmest regards - Team ió
I love io…
I really enjoy both flavours of io and love the fact that it doesn't have a nasty artificial sweetner aftertaste. It's also great that the ingredients are all natural. I have not only noticed an immediate improvement in digestive issues but also improved sleep and mood.
June 11, 2025
Unprompted review
Reply from ió Gut Health Drink
Hi Connie,
Thank you so much for the kind words!
We’re thrilled to hear you’re loving both flavours of io and that it’s making such a positive difference for you—from digestion to sleep and mood. That’s exactly what we hoped for when we created it.
We’re also really glad you’re enjoying the clean, natural taste without that artificial aftertaste. Your support means a lot to us!
Gutfully yours,
Team ió 💧
I actually don't like the taste albeit…
I actually don't like the taste albeit your company has to put a hint of a fruit taste to make it palatable which on the whole I didn't enjoy the drink and is not for me.
May 30, 2025
Reply from ió Gut Health Drink
Hi Marnie,
Thanks for giving ió a try. We’re sorry the taste wasn’t for you.
It actually took us 27 recipe versions and a taste-testing panel to get to this final blend — but we know taste is personal, and we really appreciate your honest feedback.
Wishing you all the best,
The ió Team 💚
First timer
First purchase but am loving the communication from the team on what to expect. As promised has increased fibre and goin to the l99 isn't the normal dreaded experience, plus am sleeping like a baby. I've already started a subscription and will definatly be telling my friends and family about this product.
May 12, 2025
Does what it says on the tin
May 13, 2025
Reply from ió Gut Health Drink
Hi John,
Thank you for your kind words and for being such a loyal customer. We’re so glad ió continues to deliver—simple, effective prebiotic fibre that supports your gut and overall health every day.
Look out for our ió Everyday Sachets coming soon!
Gutfully yours,
Team ió 💧
Great taste makes you feel fab
May 12, 2025
Reply from ió Gut Health Drink
Hi Brenda, thank you so much for taking the time to share about ió!
We're delighted that ió is making you feel fab and you're enjoying the taste, too. 💥😍
Look out for our sachets launching soon!
Gutfully yours,
Team ió 💧
I've been drinking iô water for at…
I've been drinking iô water for at least six months and am more regular and far less bloated. It really is true what the reviews are saying!
April 9, 2025
Reply from ió Gut Health Drink
Hi there, thank you so much for sharing your experience of ió. That's great news that you're feeling better and that ió has made a positive difference for you. Yay! 😁
Gutfully yours,
Team ió 💧
Great service
After a muddle with my order by my own doing, the company provided prompt help to resolve. I like the flavour of the drinks - time will tell of they add improvement
April 1, 2025
Reply from ió Gut Health Drink
Hi Lynsey, thank you so much for taking the time to write this review and give us 5*. We really appreciate you doing this.
Providing a high level of support is a top priority for us, and we're glad that we were able to get things sorted out for you and to your satisfaction.
We hope you enjoy your ió, too. 😊
Gutfully yours,
Team ió 💧
Wonderful flavours
Got the mixed pack as I love both the strawberry and lemon and lime flavours. They have certainly helped with my gut health and now have them as part of my daily diet.
March 10, 2025
Reply from ió Gut Health Drink
Hi Susanne,
Wow! Thank you so much for taking the time to time to write such a great review!
We're delighted that you not only enjoy the flavours, as well as ió making a difference for you. Yay!
Look out for our sachets that are coming soon with two more lovely flavours and an unflavoured version perfect for tea, coffee and cereals!💕
Gutfully yours,
Team ió 💧
Team ió
Healthier Gut
I have felt and looked bloated for a number of years and I was told I probably had bad gut health so started to drink drink a fibre water per day (along with another probiotic supplement) and noticed I was much less bloated and a lot more "regular" where I used to think "going once a day" was normal, I was wrong and have now upped to 2 bottles a day.
March 21, 2025
Unprompted review
Reply from ió Gut Health Drink
Hi SAS! Thank you so much for sharing your experience of ió!
This is great news that you're feeling less bloated and you're more regular. Yay!
Team ió 💧
Happy
I suffer with chronic constipation these are the only things that have worked for me
February 3, 2025
Reply from ió Gut Health Drink
Hi Karen,
Thank you so much for sharing your experience with ió. We're so happy that you've finally found something that makes a positive difference for you. Yay! 🎉
Team ió 💧
Daily supplement that tastes great
It's a really good addition to make your daily routine a bit better for your health and it's so easy and simple!
February 3, 2025
Reply from ió Gut Health Drink
Thank you so much for your review, Aleksandra! We're delighted that you find ió easy to add into your routine and you enjoy the taste, too! 😊
Gutfully yours,
Team ió 💧
Reply from ió Gut Health Drink
Hi Liz,
Thank you so much for taking the time to post a a great 5* review for us. We're delighted you love ió!❤️
Gutfully yours,
Team ió 💧
Your gut will thank you!
I've been drinking ió fibrewater for a couple of years now and have found it's really helped with the digestive issues caused by fibromyalgia. I'd previously tried prebiotic supplements, which didn't help. When I saw something online about ió fibrewater, I thought I'd give it a go, not really expecting it to help. But after a couple of weeks, I noticed the stomach pain, gas, and nausea had eased considerably. I still have some really bad days, but every day was a bad day before, so I'd say it's definitely worth a try if you suffer from any digestive issues! Also, their customer service is great, and it tastes delicious! 🍋🍋🟩🍓
January 31, 2025
Unprompted review
Reply from ió Gut Health Drink
Wow, wow, wow! Debbie, thank you ever so much for sharing your profound experience with ió.
We're so delighted that you're feeling better days and that they are easier and less painful.
Gutfully yours,
Team ió 💧
I love this water
I love this water, since taking it for over 5months now, it has helped with my IBS, also I eat less, and drink more water, cannot tolerate TAP water, so hardly drank water, but now because of the taste of io fibre water I now want to drink water.Glad I discovered this product, yes I recommend
January 6, 2025
Reply from ió Gut Health Drink
Thank you so much for your glowing review of ió, Johamna! ❤️
We're delighted that you're not only boosting your water intake (and now enjoying doing so), as well as experiencing improvements with your IBS. YAY! 😊
Gutfully yours,
Team ió 💧
Reply from ió Gut Health Drink
Thank you so much for your review, Jacq.
We're delighted that you're loving ió. 😊
Gutfully yours,
Team ió 💧
The Trustpilot Experience
Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.
Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.
Learn more about other kinds of reviews.
We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.
Learn about Trustpilot’s review process.
Here are 8 tips for writing great reviews.
Verification can help ensure real people are writing the reviews you read on Trustpilot.
Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.