SiS Whey Protein

Tell us what the product is for, and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?

SiS says:

About SiS Whey Protein

SiS Whey Protein contains a blend of high quality whey protein isolate and concentrate. The product formulation provides a source of rapidly digesting protein, with an amino acid profile which supports lean muscle growth and maintenance, with at least 5g of BCAAs per serving.

Each serving contains 22-23g of protein per serving, depending on the flavour you choose. Whey protein has some of the highest digestion rates known, and has a high leucine content, either 2.5g per 30g serving for strawberry, banana and vanilla flavour, or 2.4g for chocolate flavour. Leucine is an amino acid which is not only a building block for new muscle protein, but also increases the rate of muscle protein synthesis.

Why should I take SiS Whey Protein?

SiS Whey Protein is a great tasting, convenient way to ensure you have enough protein in your diet. For individuals that exercise regularly and want to promote a low body fat percentage, around 1.4-1.6g of protein per kilo of body mass is recommended. For a 75kg male who trains regularly that would equate to 120g of protein per day.

Your body can only process up to 25g of protein at a time, so a graduated intake of 20-25g every 3-4 hours through the day is recommended by sports nutritionists to support lean muscle mass. Many people have larger servings of protein at their mealtimes, meaning that there is an over consumption at some times and a lack of intake at others. SiS Whey Protein is easily added to the diet to allow you to spread out your protein intake with very little additional and unnecessary carbohydrate or fat.

As with all SiS products, SiS Whey Protein is produced at our Informed Sport accredited factory and is rigorously screened to ensure a clean, safe product that athletes of all levels trust.

Recommended Usage

SiS Whey Protein can be used throughout the day with or between meals (such as at breakfast or mid-morning and mid-afternoon snacks) to provide a convenient way to increase daily protein intake.

After training consume one serving within 30 minutes of finishing your session for maximum benefit."

Having used it regularly I have seen an increase in my endurance.

Tell us some more about the technical aspects of the product?

"SiS Whey Protein 1kg

High protein formula to aid muscle growth and development:

* Whey protein isolate & concentrate blend

* Contributes to lean muscle mass growth & maintenance

* Fuelling gold medal winners since 1992

* Wheat & Gluten Free

* Informed Sport tested

Rate the product for performance:

The SiS Whey Protein has been formulated to aid muscle growth and development. It's easy to mix, has a pleasant taste and has helped boost my performance. 

This is a difficult conundrum. If you feel you need to tweak your training using the science that SiS has developed then it does come at a price. It does seem to work, but you would have to consider the long-term cost. On top of other nutritional products used when racing or riding, the cost would soon add up, so you need to weigh this up against how you are able to perform.

Tell us how the product performed overall when used for its designed purpose

SiS Whey Protein ticks a lot of boxes. It's easy to mix, tastes pleasant and, in regards to the purpose it has been designed for, it ticks that box too.

Tell us what you particularly liked about the product

As stated above, those three features are what you want from a nutritional aid.

Tell us what you particularly disliked about the product

My only concern would the ongoing cost of using the SiS mix.

Use this box to explain your score

Despite a little scepticism I have been impressed on a number of fronts by the SiS Whey Protein. It mixes easily and without lumps, tastes pretty good, and has improved my performance over the period I have used it. The cost of ongoing use would be a negative.