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SiS Protein Bar - 20 Pack

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Product Information

Protein Bars contain a blend of easily digestible proteins (20 grams per bar) in the form of whey, casein and soy protein. It is important to consume protein in close proximity to training sessions (i.e. before or after training) in order to maximize training adaptations.

Protein intake is often overlooked by endurance athletes. Protein Bars provide an appropriate quantity of high quality protein for before or immediately post exercise.

Key Features

  • • High protein formula to promote training, adaptation and recovery
  • • Each bar contains 20 grams of easily digestible protein
  • • A high quality blend of whey, casein and soy protein
  • • Promotes the rebuild of muscle following exercise

Product Uses
Recommended Usage

Protein Bars are a convenient source of protein on the go to acheive the recommended 20-25g of protein every 3-4 hours.

Aim for 1-2 Protein Bars a day, consumed between meals, before and/or after a workout.


Adapting to the demands of endurance training is facilitated by increased muscle protein synthesis whereby new proteins are made in our muscles after each training session. The muscle becomes reconditioned so that it can better withstand the physical demands during the next training session.

For optimal protein synthesis to occur, it is crucial that we consume high quality protein given that protein contains amino acids that make new proteins. Protein Bars contain a blend of easily digestible, quality proteins that act as a trigger to stimulate protein synthesis.

Informed Sport Registered

Our complete product range is developed using a world-class approach to banned substance testing, providing assurance for athletes. For more information on Informed Sport & our unique world class approach, click here.

Nutritional Info

Mint Chocolate:

Typical ValuesPer 100gPer Serving 55g
of which sugars31g17g
of which saturates5.9g3.2g


Protein Blend 25% (Calcium Caseinate (Milk), Hydrolysed Wheat Gluten, Whey Protein (Milk), Soy Protein, Sodium Caseinate (Milk)), Glucose Syrup, Chocolate 18% (Sugar, Cocoa Mass, Cocoa Butter, Emulsifier (Soy Lecithin)), Invert Sugar Syrup, Gelatine Hydrolysate, Soy Crisps (Soy Protein, Tapioca Starch, Salt), Palm Fat, Reduced Fat Cocoa Powder, Sunflower Oil, Flavours, Emulsifier (Soy Lecithin), Salt

Chocolate & Peanut:

Typical ValuesPer 100gPer Serving 55g
of which sugars33g18g
of which saturates6.0g3.3g


Protein Blend (25%) (Calcium Caseinate (milk), Hydrolysed Wheat (gluten), Whey Protein (milk), Soy Protein, Milk Protein), Glucose Syrup, Milk Chocolate 18% (Sugar, Cocoa Butter, Whole Milk Powder, Cocoa Mass, Emulsifier (Soy Lecithihn), Flavours), Invert Sugar Syrup, Gelatine Hydrolysate, Peanuts 3.7%, Soy Crisps (Soy Protein, Tapioca Starch, Salt), Palm Fat, Flavours, Emulsifier (Soy Lecithin), L-Carnitine Tartrate, Green Tea Extract, Salt


Protein Bar - Chocolate Peanut

Protein Bar - Mint Chocolate

Read More

When should I eat these? Are they a meal replacement?

We always recommend that food should come first in your diet. However, Protein Bars are a convenient source of protein on the go to achieve the recommended 20-25g of protein every 3-4 hours.


Do these bars contain nuts?

Protein bars are made externally and yes, the chocolate and peanut bar contains nuts and the mint chocolate bar is produced in the same place so it cannot be guaranteed nut free.


Should I eat one of these or have REGO after exercising?

If you are training again sooner and/or hydration is a concern, we suggest having REGO Rapid Recovery post exercise. Solid foods like Protein Bars take longer to digest compared to liquids like REGO Rapid Recovery.


What is the recommended frequency of consumption?

Aim for 1-2 Protein Bars a day, consumed between meals, before and/or after a workout.


Will the chocolate melt in my jersey when cycling?

They have the potential to melt in warm conditions. In this situation, GO Energy bars may be a better choice as they are designed to be used during exercise.


What is the sugar content in these bars?

Protein Bars contain 17-18g of sugar per bar to aid taste.


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Verified Reviews

Rated 4.9 out of 5 based on 53 Reviews
Joe Doyland

Good has been really useful

Simon Butteriss

Tasty bar and well priced per gram of protein

Sultan Alali

Very tasty ! Very light on the stomach !

James Thomas

My favourite protein bar - tasty, filling and satisfying

BJF 1979

A tasty bar abd not bulky on the stomach in comparison with other similar protein products. My favoured bar.

Lynn Hargreaves

Very tasty and enjoyable product I will be purchasing more in the future

Terry Harvey

Tasty bar thats just right.

Daniel Comens

I like these bars. Tasty and portable so can grab protein when on the move


Great taste, easy to digest and nice size after training.

Richard Barlow

I'm not really into nuts and chocolate but these are nice.

Mr. Joe Beer

Very very "morish" so the box does not last long and hey, they help when I'm training hard

Steph Gallagher

Very tasty product that really does give me a boost after a long run. Highly recommended.


Tried one before buying the box and am now addicted to them

Fedele Valentino

Grande prodotto buonissimo


ottimo prodotto

Marco Zandinella

Ottime barrette proteiche. Di facile digestione e che non causano problemi intestinali. Gusto piacevole.

Claudio Gerold

Great product

Jason Barton

Sadly it was out of stock this time but I remember it being a great product.

Miss G Holt

tastes good

Rob Cook

Tastes great & easily digestible. I use after a gym session and as a snack whenever I need a boost.


i use this all the time and so knew what to expect very good

Colin Edwards

Great product


Love these. Easy to eat and taste great.


Davvero molto buoni, sono i miei preferiti, giusta dose e molto buono rapporto qualità prezzo

James Edward Boardley

Tasty protein top up when I can’t always get what I need in my food !

Paul C

One of the best flavoured protein bars from any supplier.

Ben Cobbold

Great to stave off hunger after a workout, feels like a treat

Tony Cruse

Really tasty, just ordered another batch

AH, London

Very palatable compared to many on the market

Chris R

Very tasty. Buy when on special offer.

Stephen Long

Tastes good and is excellent as a recovery bar


Good product whit a good taste


My favourite protein bars. I've found a lot of other brands to be too sickly but these are great, good texture to them too.

Ed Douglass

100% love these great chocolate flavour, low fats 20g protein... great for on the go

Joseph Gokmen

The quality of the product is second to none, as far as protein bars go they are the best. The flavour was appealing at times and not at other times , that's a personal preference.


Good flavour and it does what it's supposed to


Great flavour. Ideal snack to enjoy during the day.

Tee Parker

Great for putting that essential protein in at the right time loving the flavour and texture

Marco Zandinella

Ottime barrette proteiche. Di facile digestione e che non causano problemi intestinali. Il gusto è soggettivo ma a me piacciono e le mangio con piacere.

Dan P

Tastes better than expected.

Karen Parsons

Tastes good.. much better than most! I have it for breakfast most days :)

simon Jenkins

These are tasty. I cannot decide which flavour is my favourite, as both are really nice + filling.


Best on the market.

Mick Hall

A quality product that tastes good too.


Nice taste. Good size bar. Melts in the mouth.

Stuart Grace

Great taste and easy to eat on the go or after a heavy session in the gym. Please don’t change the product like some companies do as it’s a winner. Regards Stuart


Very tasty and filling.

Peter Lake


Simon Owen

Really tasty and a bit of sweet treat. Has a clean mint taste - lovely!

Paul C

These are my favourite protein bars from any supplier.

Steph Gallagher

Very, very tasty. Have tried a wide range of Protein bars, but just keep coming back to these.

Simone Chiaretta

This the best protein snack I found on the market, great taste and good quality proteins. It's more like an healthy dessert :)