Fibre Boost Raw, Cold Pressed, Flavoured Protein Bar Cereal Milk
Fibre Boost Raw, Cold Pressed, Flavoured Protein Bar Cereal Milk: independently scored 10.0/10 on Protein Score and 9.9/10 on Clean Score by ProteinScore.
21.6g protein per serve · 139 cal · 0.3g sugar · 52mg sodium · 60g serve.
Overview
This isn't a confection masquerading as a protein bar; it's a purpose-built functional snack with a remarkably short ingredient list. The formula leads with soluble prebiotic fibre from corn, followed by a blend of whey and milk protein isolates. With almonds providing some texture and stevia for sweetness, it sidesteps the longer, more complex decks we often see. The result is a bar that lands well ahead of the pack on paper. At 35.9g of protein per 100g, it's significantly denser than the 27g category average for protein bars. Its sugar content is almost non-existent, a stark contrast to the typical 10.6g per 100g we see across the aisle. Compared with the brand's own Choc Malt flavour, this Cereal Milk version packs a fraction more protein and the same near-zero sugar, signalling a highly consistent and deliberate formula across the range. It's one of the highest-protein options in a lineup known for strong nutritional profiles. The practical upshot is a bar that feels engineered, not indulgent. We see it as a gym-bag staple or a desk-drawer snack where the numbers matter more than a dessert-like experience. The massive fibre hit is the other half of the story, making it a genuinely filling bite for its low calorie count.
Protein Score: 10.0/10
Stacking this Cereal Milk bar against its Choc Malt sibling reveals an almost identical, high-performance protein profile. With 21.6g of protein in a 60g bar, it delivers a substantial hit from whey and milk isolates, earning a perfect 10/10. The protein-per-calorie efficiency is one of the best we've seen. Against the broader snack category, this bar clears the average by a wide margin. It delivers the kind of protein you'd expect from a dedicated post-workout product, not a typical afternoon snack, and it does so for fewer than 150 calories, which is a standout achievement. This isn't a casual bite; it's a tool for someone tracking their macros closely. The blend of fast-acting whey isolate and slower-release milk protein provides a complete amino acid profile, making it a legitimate option for refuelling on the go when a shaker isn't practical.
Clean Score: 9.9/10
The only additive here is a natural sweetener, Steviol Glycosides, derived from the stevia plant. With a short list of just seven ingredients and no artificial colours, flavours, or preservatives, the bar achieves a 9.9/10 for its clean profile. It's a refreshingly simple formula in a crowded market. This bar sits at the less-processed end of the spectrum for functional snacks. The use of stevia instead of sugar alcohols like maltitol (965) or erythritol (968) is a key decision, avoiding the potential for digestive issues that some people experience with those common additives. For shoppers who scrutinise ingredient labels, this bar stands out. It's far cleaner than the typical protein bar on our list, which averages 22 ingredients. The trade-off for such a short, functional list is a texture that's more dense and chewy than fluffy or indulgent.
Wins
- A huge 21.6g of protein in a low-calorie 139kcal bar.
- An exceptionally clean list with just seven ingredients.
- Almost no sugar (0.3g per bar) and no added sugar.
Watch outs
- Very high fibre content may not suit all digestive systems.
- Dense, chewy texture is functional rather than indulgent.
- Contains almonds, making it unsuitable for nut-free environments.
Ingredients
Soluble Prebiotic Fibre (Corn), Whey Protein Isolate (Milk), Milk Protein Isolate, Almonds, Natural Flavour, Sweetener (Steviol Glycosides), Salt.
7 ingredients.
Frequently asked questions
- How filling is this bar for only 139 calories?
- It's surprisingly filling for such a low-calorie snack. The bar's effectiveness comes from its two main components: 21.6g of protein and a very high dose of soluble prebiotic fibre. Both of these ingredients are known to promote satiety, helping you feel fuller for longer. This makes it much more satisfying than a typical snack with a similar calorie count. We'd say it's a great tool for managing afternoon hunger.
- Is this bar better for pre-workout or post-workout?
- It's definitely better as a post-workout option. The 21.6g of protein, sourced from fast-digesting whey isolate and slower-release milk isolate, is ideal for muscle repair and recovery after exercise. While you could eat it beforehand, the high fibre and protein load might feel a bit heavy in your stomach during a workout. For post-workout, it's a convenient alternative to a protein shake.
- How does this Cereal Milk bar compare to other Fibre Boost flavours?
- This Cereal Milk version sits at the top end of the brand's range for protein density. It has fractionally more protein than the Choc Malt flavour (35.9g vs 35.8g per 100g) and the same near-zero sugar content. This shows the core formula is very consistent across their products, with only minor tweaks for flavour. In our view, you can confidently choose whichever flavour you prefer.
- What makes this bar score so well for protein?
- The score reflects its exceptional protein density. The bar provides 15.5g of protein for every 100 calories, which is one of the most efficient ratios we've seen in the snack category. It manages to pack a full 21.6g protein serve into a small, 139-calorie bar. This makes it a true protein-first product, not just a snack with a little protein added. We'd grab it when the protein number is your main goal.
- Does this bar contain any artificial sweeteners or sugar alcohols?
- No, it contains neither. The sweetness comes from Steviol Glycosides, a natural sweetener derived from the stevia plant. This is a key difference from many other protein bars that rely on sugar alcohols like maltitol, sorbitol, or erythritol to keep sugar low. Those can cause digestive issues for some people. If you're looking to avoid both sugar and artificial additives, this is a solid choice.