Fibre Boost Bars: Everything You Need to Know Before You Buy (2026)
, 14 min reading time
Fibre Boost bars pack 27g of fibre and 21g of protein into a cold pressed bar with near-zero sugar. Here is everything Australians are actually asking about them before they buy.
Protein bars in Australia have come a long way. A few years ago, your options were basically a chalky brick that tasted like cardboard or something so loaded with sugar it might as well have been a chocolate bar. Fibre Boost changed that conversation, and if you have been seeing these bars everywhere lately, there is a good reason why.
This guide answers every question people are actually asking about Fibre Boost bars, including whether they are genuinely good for you, what the macros look like, whether they are keto-friendly, how they affect digestion, and where to buy them in Australia.
Browse the Fibre Boost range at Wallaby Wellness
What Are Fibre Boost Bars?
Fibre Boost is an Australian-made and owned protein bar brand built around one core idea: a bar that is genuinely high in fibre and protein without the sugar, artificial sweeteners, and filler carbohydrates that make most protein bars a compromise.
The bars are cold pressed rather than baked, which is a meaningful difference that we will get into shortly. Each 60g bar contains roughly 21 to 22 grams of protein, around 25 to 27 grams of soluble prebiotic fibre, less than 0.5 grams of carbohydrates, and under 150 calories. They are sweetened with steviol glycosides rather than sugar alcohols, which is one of the reasons they tend to sit better in the stomach than many other bars on the market.
The flavour range is genuinely impressive. At Wallaby Wellness you can find options including Choc Almond, Sticky Date Pudding, and Sour Watermelon, alongside many others across the wider range including Salted Caramel, Raspberry Frogs, Lamington, Passionfruit, and Creme Brulee.
Are Fibre Boost Bars Actually Good for You?
This is the question that comes up most often, and the honest answer is yes, but with some context worth understanding.
Most protein bars on the market use a combination of sugar, sugar alcohols like sorbitol and glycerol, and cheap protein sources to hit their numbers. Fibre Boost takes a different approach. The protein comes from whey protein isolate and milk protein isolate, both of which are high-quality, fast-absorbing sources. The fibre comes from a soluble prebiotic corn fibre that is non-GMO and formulated specifically for the brand. There are no hidden additives, no artificial flavours, and no nasties buried in the ingredient list.
From a nutritional standpoint, the bars are particularly well designed for a few specific goals. If you are trying to stay fuller for longer between meals, the combination of 20 to 22 grams of protein and 25 to 27 grams of fibre in a single bar is genuinely effective for appetite control. That is a fibre hit that most people do not even get from an entire day of eating, delivered in a 60g snack.
For people watching their blood sugar, the near-zero carbohydrate count and stevia-based sweetening means these bars are unlikely to cause a spike. That makes them a practical option for people managing their glucose levels, though as always it is worth checking with your healthcare provider if you have a diagnosed condition.
The cold pressing process is also worth noting. Most protein bars are baked at high heat, which can denature proteins and reduce the bioavailability of certain nutrients. Cold pressing preserves those nutrients in their natural form and contributes to the softer, chewier texture that most people find far more enjoyable than a standard baked bar.
One thing that has come up in online discussions is occasional inconsistency in nutritional labelling across flavours. This is worth keeping in mind: the macros listed are a guide and can vary slightly between flavours. If you are tracking very precisely, it pays to check the specific flavour you are buying rather than assuming all bars are identical.
What Does "Cold Pressed" Actually Mean?
It means the bars are made without baking or applying high heat to the ingredients. Instead, the ingredients are blended and formed under pressure at low temperatures, which preserves the protein structure, maintains the fibre integrity, and keeps the natural flavours intact without needing to add artificial stabilisers.
The practical result is a bar with a softer, denser, nougat-like texture that is noticeably different from most baked protein bars. People who try Fibre Boost for the first time often comment on the texture being more like a soft lolly or a dense truffle than a typical protein bar, which is part of what makes them so easy to eat consistently.
The cold pressing method also means the bars tend to be gentler on digestion, which brings us to the next question.
Do Fibre Boost Bars Affect Digestion and Bowel Movements?
This is a very common question and a fair one, because high-fibre foods do affect digestion, and not always in ways people expect.
The fibre in Fibre Boost bars is a soluble prebiotic fibre derived from corn. Soluble fibre dissolves in water and forms a gel-like substance in the gut, which slows digestion, feeds beneficial gut bacteria, and helps regulate bowel movements. For most people, adding this kind of fibre to their diet supports more regular, comfortable digestion over time.
However, if you are not used to eating much fibre and you suddenly introduce 25 to 27 grams of it in a single bar, your gut may need some time to adjust. Some people experience bloating or increased gas in the first few days of adding Fibre Boost bars to their routine. This is a normal response and typically settles within a week or two as your gut bacteria adapt.
The fact that Fibre Boost bars use stevia rather than sugar alcohols is actually a significant advantage here. Sugar alcohols like sorbitol and maltitol are a common cause of digestive discomfort in protein bars, including loose stools and cramping. By avoiding these entirely, Fibre Boost tends to be better tolerated than many competing products.
One bar per day is the general recommendation for most people. If you are sensitive to fibre or just starting out, starting with half a bar and building up is a sensible approach.
Is There a Downside to Protein Bars in General?
It would not be a complete guide if we glossed over this. Protein bars, including Fibre Boost, are a supplement to a healthy diet, not a replacement for one.
The main risk with relying heavily on any protein bar is that it can become a crutch that replaces whole food meals without providing the full spectrum of nutrients, vitamins, and minerals that a balanced plate would. Fibre Boost bars are one of the cleaner options available, but they are still a processed food product and should be treated as a convenient supplement rather than a food group.
For most people eating a reasonably balanced diet, one Fibre Boost bar per day fits comfortably without any downside. The high fibre and protein content actually makes them a better daily snack choice than most things people reach for at that point in the day.
Are Fibre Boost Bars Keto?
Yes. Fibre Boost bars are keto-friendly, and this is one of the reasons they have developed a strong following in the low-carb and keto community in Australia.
With less than 0.5 grams of net carbohydrates per bar and zero sugar, they sit well within standard keto macros. The fibre content does not count toward net carbohydrates because soluble fibre is not digested as a carbohydrate in the traditional sense. This means you get a satisfying, high-fibre snack without any of the blood sugar impact that would knock you out of ketosis.
The Sour Watermelon flavour in particular has become popular in the keto community for delivering a genuine lolly-like experience without the carbs. If you are looking for something that satisfies a sweet craving on a ketogenic diet without compromising your macros, these bars are one of the better solutions available in Australia.
Can Fibre Boost Bars Help with Weight Loss?
They can support a weight loss approach, though it is worth being clear about how and why.
The combination of high protein and high soluble fibre in each bar is genuinely effective for satiety. Both macronutrients are well-documented for their role in reducing appetite and helping people eat less overall without feeling deprived. If a Fibre Boost bar replaces a less nutritious mid-morning or afternoon snack, it is likely to reduce your overall calorie intake without you having to think too hard about it.
The low calorie count, under 150 calories per bar, also means there is very little room to go wrong. You are getting a highly satiating snack with meaningful nutrition in a calorie budget that works for almost any weight management approach.
What they will not do is burn fat on their own. No bar does that, regardless of what the marketing says. Used as part of a balanced approach to eating, they are a smart and convenient tool. Used as a magic solution, nothing will work.
How Much Fibre is in a Fibre Boost Bar?
Each 60g Fibre Boost bar contains approximately 25 to 27 grams of soluble prebiotic fibre, though the exact amount can vary slightly between flavours.
To put that in perspective, the recommended daily intake of fibre for Australian adults is around 25 to 30 grams per day. A single Fibre Boost bar comes close to hitting that entire daily target on its own. For most Australians who are chronically under-consuming fibre, this is a genuinely meaningful contribution to daily nutrition.
The fibre is a soluble prebiotic blend derived from non-GMO corn and is formulated to support gut health and digestive regularity. It feeds beneficial bacteria in the large intestine, which has downstream benefits for immunity, mood, and metabolic health over time.
Is It Okay to Eat a Fibre Boost Bar Every Day?
For most healthy adults, yes. One bar per day is a reasonable addition to a balanced diet.
Given the high fibre content, it is worth making sure the rest of your day is reasonably hydrated. Soluble fibre absorbs water in the gut, so if you are eating close to your full daily fibre intake in a single bar, drinking enough water throughout the day helps everything move smoothly.
If you are eating a diet already high in fibre from whole foods, adding a Fibre Boost bar on top may push your total fibre intake quite high. Again, this is not dangerous for most people, but if you notice any digestive discomfort, spacing your fibre sources out across the day or choosing alternate days is a simple fix.
Where to Buy Fibre Boost Bars in Australia
Woolworths and Coles do stock some Fibre Boost bars, though availability varies by location and flavour selection tends to be limited compared to buying online.
If you want access to the full range of flavours, the best option is buying through a specialist Australian wellness retailer. At Wallaby Wellness, the Fibre Boost cold pressed protein bar collection is available with fast 24-hour dispatch from their warehouse in Strathpine, QLD. Free shipping is available on orders over $150 with the code FREE150.
Here are the flavours currently available through Wallaby Wellness:
The Fibre Boost Choc Almond is a crowd favourite for anyone who loves the chocolate and nut combination. Rich, satisfying, and genuinely hard to believe it has virtually no sugar.
The Fibre Boost Sticky Date Pudding is one of the most popular flavours in the range. It tastes like a dessert and works as a snack. If you are new to the brand, this is a strong starting point.
The Fibre Boost Sour Watermelon is the one that surprises people most. A sour, fruity lolly experience in a 21g protein bar with near-zero sugar. It has become a go-to for people on keto who miss the lolly aisle.
Browse the full Fibre Boost range at Wallaby Wellness
The Verdict: Are Fibre Boost Bars Worth It?
For the right person, absolutely yes. If you are looking for a high-fibre, high-protein snack that is low in sugar, keto-compatible, easy on digestion, and genuinely enjoyable to eat, Fibre Boost bars tick every box. They are Australian made, use quality ingredients, and deliver a nutritional profile that very few bars on the market can match.
The cold-pressed process, the stevia-based sweetening, and the sheer variety of flavours make them stand out in a crowded category. Whether you are reaching for one post-workout, as a mid-afternoon snack, or as a guilt-free sweet treat after dinner, they deliver on what they promise.
The only caveat is that if you are new to high-fibre eating, start with one bar and give your gut a week or two to adjust. After that, most people find them an easy, enjoyable part of their daily routine.
Please note: This article is for informational purposes only and is not a substitute for medical or nutritional advice. Speak with a healthcare professional if you have specific health conditions or dietary requirements.