Diet Protein

From: £32.99

5.00 out of 5
  • A diet protein shake to supplement healthy nutrition
  • Uses the patented EU Clarinol® CLA
  • 36g protein, 196 kcal, 3.2g fat, 5.1g carbs per serving

What is Diet Protein?

Diet Protein takes high quality whey protein and adds CLA, L-carnitine and green tea in very specific doses.  These ingredients include material from leading suppliers in their field.  For instance, the CLA used is supplied by Clarinol® who own manufacturing licences granted to them by the Wisconsin Alumni Research Foundation (WARF) who pioneered research into and isolated the substance conjugated linoleic acid.  It is sold throughout the world and is still one of only diet whey products on the market to contain an optimised dose of Clarinol® CLA (Conjugated Linoleic Acid). 

Reflex Nutrition’s Diet Protein contains whey protein and micellar casein, sourced within the EU from grass-fed cattle. Additional ingredients such as L-carnitine, green tea extract and friendly bacteria make this a truly fantastic product that’s guaranteed to deliver results. It is also completely free from Soy Protein. Please see our blog about Soy Protein to fully understand why Reflex Nutrition does not use Soy Protein.

Who is it for?

Diet Protein has been formulated for both women and men who seek unparalleled quality and who insist on using products that are derived from only the finest ingredients whilst avoiding Chinese CLA, GMO soy and other cheap unwanted additives.

Diet Protein is a vegetarian product, however, it is not suitable for vegans or coeliacs.

What are the benefits?

  • Free from Chinese unbranded CLA 
  • EU Sourced Grass Fed undenatured Milk and Whey Protein
  • Free From Soy Protein
  • Free from GMO ingredients
  • No added sugars
  • 50,000,000 friendly bacteria spores per 50g
  • 150mg green tea extract per 50g
  • 250mg L-Carnitine L-Tartrate amino acid per 50g

Diet Protein contains super high quality undenatured Whey and Milk proteins derived from EU grass fed cattle without consuming unnecessary carbohydrates, calories or fat. Diet Protein also provides significant amounts of three very popular diet supplements, CLA, L-Carnitine and green tea in doses that beat the competition. 

The unique blend of both whey protein and micellar casein provides both fast digesting protein and slow digesting protein whilst also providing a significant source of natural dairy calcium.

Recommended Usage

To make a great tasting shake mix 50g (approximately two level 60ml scoop measures) with 350ml water in a shaker or blender and consume immediately.

The above is our recommended usage instructions; you may of course take a larger or smaller serving and mix with more or less liquid as desired.

How is it made?

Reflex Nutrition’s state of the art Diet Protein is made at the Reflex Science Park in the U.K, it is one of only a handful of factories in the World which is ISO9001 registered for quality control but is also an Informed Sport Registered Site. Each and every batch of Diet Protein is carefully made to exacting quality control and auditing procedures ensuring 100% traceability of every high quality ingredient that goes into producing Diet Protein. At the end of each run every single batch is then tested in our lab to qualify its label claims for protein content. Be in absolutely no doubt the quality and effort that goes into making this product.

How does it taste?

Thanks to our R&D team, Diet Protein tastes even better than before. Each shake is designed to be mixed with water and tastes absolutely delicious.

Try Diet Protein in three fantastic flavours:

  • Banoffee
  • Chocolate
  • Strawberry
  • Vanilla

The science behind it

Clarinol® CLA is made under manufacturing licence granted by WARF who are the leading institute responsible for the discovery and development of CLA.  

Antioxidants, green tea extract, LactoSpore® friendly bacteria, and L-carnitine make Diet Protein the well-rounded and complete weight management supplement that thousands of dieters have relied on for over a decade.

Anything else?

Available in two sizes: 900g and 2kg, with 18 or 40 servings.

Suitable for

  • Vegetarians: Yes
  • Vegans: No
  • Coeliacs: No

Diet Protein (all flavours) has been certified as Halal safe by The Halal Trust.

For further allergy advice, please read our suitability guide.


Protein Blend (Milk Protein Concentrate (80% Micellar Casein, 20% Whey Protein), Ultra Filtered Whey Protein Concentrate, Peptide-Bonded Glutamine (derived from Wheat Protein), Cross Flow Micro Filtered Whey Protein Isolate), Clarinol® Conjugated Linoleic Acid (CLA) Powder (Safflower Oil, Glucose Syrup, Sodium Caseinate, Anti-Caking Agent (Silicon Dioxide), Lecithin, Stabiliser (Tetrasodium Diphosphate), Antioxidant (Vitamin E)), Flavourings, Natural Colourings (Fat-Reduced Cocoa Powder (chocolate and banoffee varieties only), Betanin (raspberry & strawberry varieties only), Beta Carotene (banana, banoffee, chocolate peanut butter & vanilla varieties only), Anthocyanin (raspberry & strawberry varieties only)), Freeze-dried Banana Powder (banana & banoffee varieties only), Thickener (Carboxymethyl Cellulose), Emulsifier (Soya Lecithin), L-Carnitine L-Tartrate, Malic Acid (raspberry & strawberry varieties only), Green Tea Extract (95% Polyphenols, 45% EGCG), Freeze-dried Strawberry Powder (strawberry variety only), Artificial Sweetener (Sucralose), LactoSpore® Probiotics (Bacillus Coagulans), Silicon Dioxide.

Nutritional Profile

Diet Protein typical values - Reflex Nutrition

Product Label


3 reviews for Diet Protein

  1. Rated 5 out of 5


    Lost 4lbs and I’m very happy with your product. Started to use Diet Protein 7 weeks ago and I exercise 3 or 4 times a week. The flavour, especially the strawberry, is great. The chocolate reminds me of a thicker nesquick type milk shake. It is clear that the quality of ingredients and the proper dose of Cla made a difference because I’ve used other diet whey products and none have had such a benefit as Reflex. I’ve told all my friends this is the only one to have! Oh and love the new smaller tub.

  2. Rated 5 out of 5

    Paul Clothier

    Nice to see a product that actually gives a decent dose of the active ingredients without needing a dozen shakes every day!!

  3. Rated 5 out of 5

    Miss Mary Jenner

    Love this. Tried other diet whey products but this one from Reflex came recommended by a friend who knows her stuff. Apparently it is the only diet whey with Clarinol cla in the dose used in all the studies. I can’t understand why other products can get away with talking about CLA when they only contain a few hundred milligrams when the research says you need to take 3000mg. I’m glad Reflex are ethical because as a result I’ve lost just under 2kgs of bodyfat in just on 5 weeks using it 2x a day. Taste is good etc. not a lot more to say.

Add a review