CLEAN CONSCIOUS - 100% vegetarian ingredients, free from preservatives, perfect for mindful snacking.
GUILT FREE INDULGENCE - Savor the rich chocolate brownie flavor with zero added sugars—only naturally occurring sweetness.
ON THE GO ENERGY BOOST - Compact and convenient, ideal for pre/post-workout or anytime you need a smart protein fix.
PROTEIN PACKED PERFORMANCE - Fuel your hustle with 31g of premium whey protein isolate per bar.
CRUNCHY TEXTURE SERIOUS SATISFACTION - Unique crispy bar design delivers a crave-worthy crunch that keeps you coming back.
The ON Crispy Bar Choc Brownie 65g is a high-protein, low-sugar snack bar featuring 31g of whey protein isolate and a unique crispy texture. Designed for active professionals and athletes, it offers a delicious chocolate brownie flavor with 100% vegetarian ingredients and no added sugars, making it a clean, convenient, and satisfying protein boost anytime.
Specifications
Product Dimensions
24 x 6 x 15.2 cm; 650 g
Item model number
1109714
Product Name
Protein Crisp Protein Bars, Chocolate Brownie with Whey Protein Isolate
Allergen Information
Contains: Milk, Soy
Weight
650 g
Units
650.0 gram
Storage Instructions
store in a cool and dry place
Serving Recommendation
1 bar
Manufacturer contact
4 Waterside, Dublin 24, Ireland
Country of origin
gb
Brand
Optimum Nutrition
Format
Bar
Age Range Description
Adult
Speciality
Free from preservatives
Package Information
Box
Manufacturer
Optimum Nutrition
Country of origin
United Kingdom
Serving Size
1, 100 g
Energy (kJ)
1368.00 kJ
Energy (kcal)
326.95 kcal
Fat
10.0 g
Carbohydrate
24.0 g
- Sugars
2.8 g
Fibre
20.0 g
Protein
31.0 g
Have a Question? See What Others Asked
What's new with OPTIMUM NUTRITION Bars?
The label looks different compared to the previous one I got, is it still the same OPTIMUM NUTRITION product?
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Reviews
4.2
All from verified purchases
J**N
VERY TASTY! but Expensive
I absolutely love these bars, some of the best protein bars I've ever eaten. Although, they are very pricey compared to other brands but at least you won't have that cardboard texture! Definitely worth a buy when they are on sale!
W**C
Favourite protein bar
Love the crispy texture and adequately chocolaty taste. Not to mention the macro is great. I used to love marshmallow one bit it was bit too sweet and got a bit sick of it after a few boxes. This one is my new favourite now.
C**N
Solid Bar, Good As A Sub Breakfast In A Pinch
Pretty solid protein bar. Reminiscent of a cereal bar, gladly got through the whole box and I will re order some when they come back on offer. Personally I think their standard price is a little too much but other than that well worth a pop I think, they're not the best tasting bar in the world but if you want a quick breakfast they are genuinely perfect
F**X
Enjoy in moderation
I rarely write reviews but I wanted to address some people who complain about indigestion. They must be eating too many of these bars. If I have one bar per day I am ok but if I double up then it causes flatulence. I understand one bar may not be enough intake of protein but find another source then if you don't want the farts! To be fair, majority of protein bars cause flatulence if eaten in large quantities.Overall it's a nice protein snack. Chocolate and Peanut flavours are sweet but do not contain sugar, instead they have sugar alcohol.
L**D
Surprisingly good!
I have tried a few protein bars previously, such as the ones you get from Lidl before I started trying boxes of ones from Amazon, such as RAW - blueberry (which was very dry and tasteless but fulfilled my needs). However, I moved onto this and I've eaten nearly half of the box so I can be sure it wasn't me and I can give a true reflection of this product as, a lot of people will have been in the same position as me, and rely on others reviewing the product to gauge whether to buy it or not.So the bars are actually bigger than I thought they'd be - just bigger than the size of a Snickers or Mars Bar - and are kind of like bars of Rice Crispies with a chocolate base. It's a bit more 'solid' than you'd expect and has more of a 'chew' to each bite. Not as tasty as 'normal' chocolate bar (I wish!) but certainly tastier than any of the other bars I'd tried.I got the Chocolate Brownie flavour and didn't find it too sweet for my taste. It was also on a deal at £15 for 10 bars which was not the cheapest but nearly - beaten only by a few brands - but it does give you 20g of protein per bar which was more than a lot of those, cheaper, alternatives.For me, I think I've found 'it' and I don't intend trying any other protein bars and will stick with this one.
I**K
Artificial taste, gas catalyst
These taste fine, though a bit artificial. My main issue is that it causes me to be so gassy for the rest of the day, to the point that it's not worth it. The other ON products are fine - it's just the crispy bars that causes this problem.
J**O
Surprisingly nice!
Nearest thing there is to a health (ier) toffee crisp! Some protein bars are like chewing carpet but these are not. They are surprisingly nice and good enough to trick me into thinking I'm eating a chocolate bar and not a protein bar. Will be ordering again.
M**S
High Fiber content causes bloating and indigestion
Had a similar problem to other reviewers and didn't get on well with this product, tried it out after the other protein bars (3g fiber per 60g bar) went off subscribe and save.Unfortunately because of the high fiber content, 13g per 60g bar, I found these caused unbearable bloating and indigestion for the rest of the day after only having 1 bar, definitely will be avoiding in future and looking for something with lower fiber content.They are also quite dry and tasteless, are difficult to finish without some liquid to wash them down.
Common Questions
Trustpilot
TrustScore 4.5 | 7,300+ reviews
Ayesha M.
The product exactly matches the description. Very satisfied with my purchase.
5 days ago
Khalid Z.
Great experience from order to delivery. Highly recommended!
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Although, they are very pricey compared to other brands but at least you won't have that cardboard texture! Definitely worth a buy when they are on sale!"},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"W***C"},"datePublished":"18 August 2023","name":"Favourite protein bar","reviewBody":"Love the crispy texture and adequately chocolaty taste. Not to mention the macro is great. I used to love marshmallow one bit it was bit too sweet and got a bit sick of it after a few boxes. This one is my new favourite now."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"4.0"},"author":{"@type":"Person","name":"C***N"},"datePublished":"28 November 2020","name":"Solid Bar, Good As A Sub Breakfast In A Pinch","reviewBody":"Pretty solid protein bar. Reminiscent of a cereal bar, gladly got through the whole box and I will re order some when they come back on offer. Personally I think their standard price is a little too much but other than that well worth a pop I think, they're not the best tasting bar in the world but if you want a quick breakfast they are genuinely perfect"},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"F***X"},"datePublished":"19 August 2021","name":"Enjoy in moderation","reviewBody":"I rarely write reviews but I wanted to address some people who complain about indigestion. They must be eating too many of these bars. If I have one bar per day I am ok but if I double up then it causes flatulence. I understand one bar may not be enough intake of protein but find another source then if you don't want the farts! To be fair, majority of protein bars cause flatulence if eaten in large quantities.Overall it's a nice protein snack. Chocolate and Peanut flavours are sweet but do not contain sugar, instead they have sugar alcohol."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"L***D"},"datePublished":"7 November 2021","name":"Surprisingly good!","reviewBody":"I have tried a few protein bars previously, such as the ones you get from Lidl before I started trying boxes of ones from Amazon, such as RAW - blueberry (which was very dry and tasteless but fulfilled my needs). However, I moved onto this and I've eaten nearly half of the box so I can be sure it wasn't me and I can give a true reflection of this product as, a lot of people will have been in the same position as me, and rely on others reviewing the product to gauge whether to buy it or not.So the bars are actually bigger than I thought they'd be - just bigger than the size of a Snickers or Mars Bar - and are kind of like bars of Rice Crispies with a chocolate base. It's a bit more 'solid' than you'd expect and has more of a 'chew' to each bite. Not as tasty as 'normal' chocolate bar (I wish!) but certainly tastier than any of the other bars I'd tried.I got the Chocolate Brownie flavour and didn't find it too sweet for my taste. It was also on a deal at £15 for 10 bars which was not the cheapest but nearly - beaten only by a few brands - but it does give you 20g of protein per bar which was more than a lot of those, cheaper, alternatives.For me, I think I've found 'it' and I don't intend trying any other protein bars and will stick with this one."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"3.0"},"author":{"@type":"Person","name":"I***K"},"datePublished":"31 March 2023","name":"Artificial taste, gas catalyst","reviewBody":"These taste fine, though a bit artificial. My main issue is that it causes me to be so gassy for the rest of the day, to the point that it's not worth it. The other ON products are fine - it's just the crispy bars that causes this problem."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"J***O"},"datePublished":"30 May 2022","name":"Surprisingly nice!","reviewBody":"Nearest thing there is to a health (ier) toffee crisp! Some protein bars are like chewing carpet but these are not. They are surprisingly nice and good enough to trick me into thinking I'm eating a chocolate bar and not a protein bar. Will be ordering again."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"1.0"},"author":{"@type":"Person","name":"M***S"},"datePublished":"21 June 2021","name":"High Fiber content causes bloating and indigestion","reviewBody":"Had a similar problem to other reviewers and didn't get on well with this product, tried it out after the other protein bars (3g fiber per 60g bar) went off subscribe and save.Unfortunately because of the high fiber content, 13g per 60g bar, I found these caused unbearable bloating and indigestion for the rest of the day after only having 1 bar, definitely will be avoiding in future and looking for something with lower fiber content.They are also quite dry and tasteless, are difficult to finish without some liquid to wash them down."}],"aggregateRating":{"@type":"AggregateRating","ratingValue":4.125,"bestRating":5,"ratingCount":8}},{"@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What's new with OPTIMUM NUTRITION Bars?","acceptedAnswer":{"@type":"Answer","text":"Not only do OPTIMUM NUTRITION bars have a fresh look, but they also have an updated formula. Whipped Protein Bars and Fruit & Nut Protein Crisp bars are free from palm oil and suitable for vegetarians."}},{"@type":"Question","name":"The label looks different compared to the previous one I got, is it still the same OPTIMUM NUTRITION product?","acceptedAnswer":{"@type":"Answer","text":"As you evolve, so do we. The part of our mission is to help active individuals better understand OPTIMUM NUTRITION products. Now choosing the right product for you is easier with more visible product benefits, features and flavours on each tub."}},{"@type":"Question","name":"Are the ingredients tested and safe?","acceptedAnswer":{"@type":"Answer","text":"All of the ingredients in our products have been approved and considered safe for consumption by the European Food Safety Authority."}}]}]}
