Fibre Boost Protein Bars are 60 g cold pressed protein bars for people who want a filling, low-sugar snack between meals. Across the 15 flavours we checked, the wrapper lists 20 to 22 g of protein, 24 to 27 g of fibre, 0.4 to 3.6 g of carbs and 0.2 to 1.8 g of sugar per bar. That much fibre is close to a full day's target, so ease in.
At a glance
| Detail | Fibre Boost Protein Bars |
|---|---|
| Brand | Fibre Boost |
| Type | Cold pressed flavoured protein bar |
| Serve size | 1 bar (60 g) |
| Protein per bar | 20 to 22 g, depending on flavour |
| Fibre per bar | 24 to 27 g, depending on flavour |
| Carbs and sugar per bar | 0.4 to 3.6 g carbs and 0.2 to 1.8 g sugar, depending on flavour |
| Sizes we list | Single 60 g bars |
| Flavours we list | A large range, including Apple Crumble, Chai Latte, Salted Almond, Cinnamon Donut, Maple Pancake, Birthday Cake, Brownie and Strawberries & Cream |
| Dietary notes | Made with whey and milk protein, so not vegan. The panels we saw list almonds and state gluten not detected. Check the wrapper of your flavour. |
What is in Fibre Boost bars
The front of each wrapper shows four numbers: protein, fibre, carbs and sugar. The nutrition panels published for the range list a short ingredient base: soluble prebiotic fibre (from corn), whey protein isolate, milk protein isolate and almonds, with natural flavour, salt and steviol glycosides as the sweetener. Each flavour adds its own extras, such as cocoa, banana, walnuts or dates.
Protein. Whey and milk proteins are dairy proteins, which the Australian Institute of Sport (AIS) describes as high biological value. The AIS suggests spreading protein over 3 to 5 meals or snacks a day, with about 15 to 30 g at each, and one bar sits inside that range. To work out your daily total, see how much protein you need a day.
Fibre. This is the standout. The NHMRC Nutrient Reference Values set an adequate intake of 25 g of fibre a day for women and 30 g for men, so one bar covers most or all of a day's target. The Better Health Channel says most Australians eat 20 to 25 g a day, and warns that a sudden switch to a high-fibre diet can cause abdominal pain and wind. Its advice is to add fibre slowly and drink enough water. It also prefers fibre from everyday foods over fibre supplements, so treat the bar as a top-up to a varied diet, not your only fibre source.
Carbs and sugar. Most flavours we checked list under 1 g of sugar, and carbs stay low. That makes this a protein and fibre snack, not a fuel bar. The AIS notes that low-fibre bars are the usual choice before or during hard endurance sessions, because low fibre may help gut comfort.
Who it suits
- People who want a filling snack with protein and fibre between meals.
- Anyone topping up a meal or snack that is usually low in protein. The AIS lists bars as one form of protein supplement, handy when preparing protein-rich food is not practical.
- People watching sugar: most flavours we checked list under 1 g per bar.
- Busy days: no shaker, no mixing, and plenty of flavours to rotate.
Who should check first
- Milk allergy or vegan diet: the bars are made with whey protein isolate and milk protein isolate.
- Nut allergy: the panels we saw list almonds, Banana Bread adds walnuts, and the allergen statement says the bars may contain traces of other tree nuts and peanuts. Read the wrapper.
- Sensitive gut or IBS: 24 g or more of fibre in one go is a lot. Try half a bar first.
- Coeliac disease: check the gluten statement on the wrapper you buy.
- Pregnancy, medical conditions or medication: ask your doctor or dietitian before making big changes to your fibre or protein intake.
- Drug-tested athletes: Sport Integrity Australia says no supplement can fully guarantee you will not test positive. Read our guide for drug-tested athletes.
How to use Fibre Boost bars
There is no special timing. Have one bar as a snack, for example mid-afternoon or after training, with a glass of water. If you do not usually eat much fibre, start with half a bar for a few days and build up, in line with the Better Health Channel's advice to add fibre slowly. Count the bar's protein and fibre toward your daily totals.
How it compares
- Rule 1 Whey Blend: a powder rather than a bar. One 35 g scoop of Chocolate Fudge gives 24 g of protein but only 1 g of fibre, so it suits people who want protein without the fibre load.
- R1 Protein Whey Isolate: 25 g of protein and 0 g of sugars per 32 g scoop of Chocolate Fudge, for a lean shake you mix with water.
- SiS GO Isotonic Energy Gels: the opposite job. Each 60 ml gel gives 22 g of carbohydrate for fuelling during long sessions, where a high-fibre bar is not ideal.
Where to buy Fibre Boost bars in Melbourne and Australia
You can buy Fibre Boost Protein Bars online at Supps247 with Australia-wide delivery (see shipping and returns), or order online and click and collect from one of 11 Supps247 stores that offer online pickup. Supps247 has 18 stores, 17 in Victoria plus Richlands in Queensland, so use the store locator to find your nearest. Staff in store can help you compare labels side by side. You can also use our price match guarantee (conditions apply).
Fibre Boost protein bar review: our verdict
Fibre Boost bars are one of the more useful bars to keep in your bag if your goal is staying full between meals. Each 60 g bar gives 20 to 22 g of protein and 24 to 27 g of fibre, most flavours list under 1 g of sugar, and there are plenty of flavours to rotate. The fibre is the standout and also the catch. One bar is close to a full day's fibre target, so if your usual diet is low in fibre, start with half a bar and drink water. They are not a pre-training or race-day fuel, and they contain milk and almonds, so they do not suit vegans or anyone with those allergies.
FAQs
How much protein is in a Fibre Boost bar?
Between 20 and 22 g per 60 g bar across the flavours we checked. For example, Apple Crumble lists 20 g and Maple Pancake lists 22 g. Check the front of the wrapper for your flavour.
How much fibre is in a Fibre Boost bar?
Between 24 and 27 g per bar across the flavours we checked. That is close to the NHMRC adequate intake of 25 g a day for women and 30 g for men, so count it toward your daily total.
Are Fibre Boost bars low in sugar?
Most flavours we checked list under 1 g of sugar per bar, and the highest we saw was 1.8 g (Apple Crumble). Carbs ranged from 0.4 to 3.6 g per bar.
Are Fibre Boost bars vegan?
No. They are made with whey protein isolate and milk protein isolate, which both come from milk. If you avoid dairy, look at a plant protein powder instead.
Can a high-fibre bar upset my stomach?
It can if your usual diet is low in fibre. The Better Health Channel says a sudden switch to a high-fibre diet may cause abdominal pain and wind. Start with half a bar, build up over a few days and drink enough water.
When is the best time to eat a Fibre Boost bar?
Any time it suits you as a snack, such as between meals or after training. It is not a pre-race fuel: the AIS notes low-fibre options are the usual pick before and during hard endurance sessions.
Label details checked against Fibre Boost wrapper labels on 19 October 2026. Formulas can change, so always read the label on the product you buy and follow the directions.
Sources: Fibre Boost, Apple Crumble Cold Pressed protein bar wrapper label; Fibre Boost, Caramel Popcorn nutrition information and ingredients panel (from fibre-boost.com); Australian Institute of Sport, Group A supplements: Isolated Protein Supplements and Sports Bars fact sheets; NHMRC Eat for Health, Nutrient Reference Values: Dietary fibre; Better Health Channel, Fibre in food; Sport Integrity Australia, Supplements in sport
