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Product Code

SiS Protein Bar - 55g


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 achieve 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.

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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

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 4.8 out of 5 based on 40 Reviews

Tasty. Although unsurprisingly melts in hot weather!

J Maitland

Tastes nice and seems palatable

Philip Morrison

Taste great and gets protein into my body quickly after exercise

Mr Neil Townsend

Great product 👌

Mike Lawrence

Great to eat. Too good in fact!


very nice bar


Tasty bar that helps increase protein intake between meals and stops snacking on rubbish.

Mr Mark Ford-Powell

Excellent product

Mr James Henton

I like these!! Very tasty!

David McNicol

Tasty and does the job


best tasting protein bar so far!

Afton Fitzhenry

perfect for a protein grab and go

Andy (North-East)

Excellent product

Ben Nicholas

a tasty snack to help you recover from a ride

Matt Guilder

A great snack perfect for mid morning cravings!


Really nice product, good taste, easy to consume whilst on the bike & good amt of good quality protein. Recommended.


Very nice but not something I would use to often I prefer fruit based bars


Love this product, great taste and easy to digest.


Tastes good. Happy to eat as a snack rather than just as post workout nutrition.


Een ideale reep voor extra proteïne te nemen de smaak is goed en niet overheersend

Peter Lake

Always excellent.

Tim Veal

Nice flavour tastes to good to be a healthy protein product.

J Maitland

Tastes fine - though on balance I prefer the PB flavour


Great for on the go protein

Mr Neil Townsend

Enjoyed but not to sure about the mint🤔

Mike Lawrence

Great tasty bar. Easy to eat, not too chewy.

Dean Forrester

Very good as always

David Peso

Nice and tasty


Really easy to eat and get protein in after your ride. The mint taste makes it a little more refreshing. Good service from SIS.


Love these! Taste like a Snickers bar :-)

David McNicol

Eat in small bites and works well

Benjamin Mahoney

Very tasty but the peanut butter version is my favourite.

Matthue Levitt

By far the best protein bar I've ever had. Mint is subtle and not overpowering. Bar has an excellent consistency.


Very good.

Afton Fitzhenry

great with a hot drink to relax after gym

Andy (North-East)

Oh yeah!!!


tasty portable protein bar


Eenekkere reep moet een juiste hoeveelheid mint smaak