Diet Protein

From: £32.99

5.00 out of 5
  • Contains three times the amount of CLA than leading competitors based on two daily servings
  • 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
  • *25% discount available on 2kg tubs only
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What is Diet Protein?

Reflex Nutrition’s Diet Protein is one of the original tried and test diet shakes developed over 10 years ago. It is sold throughout the World and is still one of only diet whey products on the market to contain the optimum amount of Clarinol® CLA (Conjugated Linoleic Acid) according to scientific research. Studies have proven that 3,000mg and above of CLA a day is optimal, and nearly all other diet shakes on the market stop at 1,000mg, which is scientifically proven to have little effect. By taking two of Reflex Nutrition’s Diet Protein shakes a day, you’ll be ensuring you are consuming 3,200mg of patented Clarinol® CLA, which is one of the highest quality CLA products available.

If you are considering a Diet Protein type product please read our blog first and give yourself the upper hand when deciding which type of diet shake to use.

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 do not use Soy Protein.

Who is it for?

Diet Protein has been designed for both women and men who are in the pursuit of perfection that demand a product of unparalleled quality. For those 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?

  • Only diet whey shake to contain 3,200mg of patented Clarinol® CLA per daily serving
  • CLA dose in line with Double Blind Placebo Controlled Studies
  • No Chinese unbranded CLA which is found in nearly all competitor products
  • Lifetime Guarantee, in the unlikely event you are not happy for any reason we’ll refund you in full*
  • 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 help you maintain and develop lean toned muscle, it 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. * see table.

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.

Consume two servings per day.

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:

The science behind it

Every single product that Reflex Nutrition makes is based around real science and nothing but. That means Double Blind Placebo controlled studies, they are the benchmark of all studies. As a direct result of such studies Diet Protein is delivers the exact amount of CLA which is been scientifically proven to be most effective, that dose is 3,200mg of active CLA isomers from patented Clarinol® Conjugated Linoleic Acid.(not just cheap Chinese cla powder like many brands).

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. sarajacobs22
    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. Paul Clothier
    5 out of 5


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

  3. Miss Mary Jenner
    5 out of 5


    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.

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