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PURE & NATURAL award-winning nutrition
200 NUTRITION INNOVATIONS to keep you smashing it
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  • Vegetarian
  • Vegan
  • Gluten Free
  • Natural flavours
  • Diabetic
  • Wheat Free
  • GM Free


When you spend over £50

Why you love it...
“Superb in every way, mixes perfectly, not full of thickeners, tastes great and has the highest amount of protein per serving I've found.” – Murray
Why we love it...
Diet Whey Isolate 97 is the purest whey protein isolate, renowned for having the highest protein content and lowest carbohydrate and fat content of any protein in sports nutrition today. It is designed specifically for anyone dieting or looking to decrease their calorie intake.

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Diet Whey Isolate 97

Diet Whey Isolate 97 is the purest whey protein isolate, renowned for having the highest protein content and lowest carbohydrate and fat content of any protein in sports nutrition today. It is designed specifically for anyone dieting or looking to decrease their calorie intake.

Diet Whey Isolate 97 has less than 1g of fat and less than 1g of carbohydrates per serving. Sourced from premium grade whey protein isolate, it has an excellent amino acid profile. Diet Whey Isolate 97 uses membrane technology to create an ultra pure form of whey protein with its lactose, carbs and casein removed.


Diet Whey Isolate 97 Key Features

This ultra pure protein undergoes a unique manufacturing process whereby the protein is extracted directly from skimmed milk using membrane technologies at low temperature through two processes known as microfiltration and ultrafiltration. This ultimately produces a very pure form of whey protein that's had its lactose, carbohydrates and casein removed. This leaves ultra pure whey protein isolate, a protein that is the ultimate in purity.


Diet Whey Isolate 97 With Natural Flavours

Diet Whey Isolate 97 protein shake is made from vegetarian sweet cheese, sourced directly from Europe's leading whey protein manufacturer. It is manufactured at our state of the art facility right here in the UK with our widely acclaimed all natural flavours and colours to create the finest quality whey protein shake. No fillers or thickeners are used during the production process which guarantees a totally pure product. As we produce all our protein formulas ourselves, each whey protein offers the ultimate in freshness. For independent product certification of its quality, simply click on the Product Testing tab above to see for yourself.

Find out more about TPW™ All Natural Innovative Flavours.


Ultimate Quality Assurance of Diet Whey Isolate 97

Diet Whey Isolate 97 is the purest whey protein we produce and its quality is unsurpassed. We recommend it to be used in conjunction with a training programme and balanced diet. In addition, we recommend a number of other TPW™ supplements to work alongside Diet Whey Isolate 97 such as CLA, Green Tea Ultra and Whey & Oat Crisp Flapjack bars to help you achieve optimal results.

Here at TPW™, you can have supreme confidence in the product quality and supply source. Each ingredient supplier must pass rigorous audits and checks before being given the TPW™ quality seal of approval. Traceability, quality, and consistency are the three things we demand on every single ingredient. This is our philosophy that flows through every product we manufacture and sets us apart in the world of sports nutrition today.

Please note that this product is produced in-house at The Protein Works™ production facility. It is supplied in a re-sealable foil pouch to ensure freshness and a scoop is included in every product.

Diet Whey isolate 97

- 08 October 2016

I got this ( choc silk ) to loose some weight, im only a few days in....it can be mixed with water or milk. it not the best tasting when using water, but when made using semi-skimmed milk it is delicious....tastes like a milkhake.

- 13 September 2016

Bought the Cherry Bakewell version and add a scoop of it to my morning porridge. Absolutely delicious. Only just started using it, so i'll see how it goes.
Tastes Great and Easy to Mix

- 18 August 2016

Got the Mint Chop Chip version and absolutely loved it. mixes really easily and goes down easy with either water or milk.

Plus the scoop is a great addition.

- 15 August 2016

The cookies and cream flavour is amazing, it smells nice and tastes even better! The best protein shake I've tried by far, it is smooth, doesn't have a powdery taste and is just like a milkshake.
Very Good Product

- 03 August 2016

I have tried Caramel Macchiato and Knickerblocker Glory, they are both real good mix, very smooth! Caramel Macchiato is real nice and would buy again, the Knickerblocker Glory isn't as nice but that's not to say others would enjoy it!

Additional Information

Values based on: No
Energy (kJ) No
Energy (kcal) No
Fat (g) No
Fat of which Saturates (g) No
Carbohydrates (g) No
Carbohydrates of which Sugars (g) No
Fibre (g) No
Protein (g) No
Salt (g) No
Cholesterol (mg) No
Sodium (mg) No
Calcium (mg) No
Please Note: No


Serving Size: 30g (one large heaped 70ml scoop)

Add 30g (one large heaped 70ml scoop) to 150ml - 200ml water or milk to your TPW™ Master Blender. Then mix well and consume.

We recommend consuming up to 3-5 servings daily.

  • 1 serving between meals
  • 1 serving before bed

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Q. When should I take Diet Whey Isolate 97?

A. It depends upon your lifestyle and goals, we recommend the following optimal serving times:
Immediately upon waking / 30 minutes pre workout / immediately after your workout / before you go to bed. Any other time during the day when you require additional protein intake.

Q. Is all whey protein isolate the same, regardless of which brand it is?

A. The quality of protein can vary significantly and therefore the protein content will do too. In addition, just because a product may be called Whey Protein Isolate it doesn't mean that it only contains whey protein isolate. We recommend you read the ingredients and nutritionals on the label to better understand exactly what you are buying. We can assure you that our Diet Whey Isolate 97 is purely whey protein isolate. At TPW™, we are committed to transparency and openness in all our products and that is why we provide the following information on all our protein products: 1. Product Profile - a complete overview of the product's background including our approval, location of manufacture and money back guarantee applicability. 2. Protein Insight - a complete breakdown of the types and quantities of protein contained in the product. 3. Product Testing - an up to date certificate of analysis which provides independent verification of the protein content

Q. How can I tell if the protein I use is good quality protein?

A. Key signs to look for are the level of protein declared on the label. Look for ultra pure whey protein isolate with a minimum of 97%. Unflavoured, ultra pure whey protein isolate should be smooth with a neutral dairy taste. It should be easy to mix and with little froth. Of course, the ultimate way to know is from the results you get from taking the product.

Q. Does your flavoured whey protein powder contain artificial flavouring and colouring?

A. Most protein supplements on the market today are made using artificial flavours and colours. We are committed to maintaining purity in all our products which is why we only use all natural flavouring and colouring with absolutely nothing to hide. Not only is this kinder to your body, but it also gives a more natural and real taste to your shake.

Q. Is Diet Whey Isolate 97 suitable for vegetarians and vegans ?

A. Diet Whey Isolate 97 is suitable for vegetarians, but not for vegans.

Q. Can I take Diet Whey Isolate 97 with other supplements?

A. The simple answer is yes. We recommend you always check serving instructions on each product if you plan on taking a combination of supplements.

Q. What effects should I expect from taking Diet Whey Isolate 97 alongside my training regime?

A. Diet Whey Isolate 97 is the ideal supplement to for anyone looking to reduce their calorie intake while meeting their daily elevated protein requirements.

Q. Who should take / benefit from using Diet Whey Isolate 97?

A. It is ideal for anyone looking to diet and at the same time meet elevated protein requirements through intensive exercise and training. Of course, it is perfect for anyone who wants to avoid anything artificial in their diet.