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Free of artificial colours
Free of artificial colours
Gluten free
Gluten free
GM Free
GM Free
Halal Trust certified
Halal Trust certified
NOT Suitable for vegans
NOT Suitable for vegans
Suitable for vegetarians
Suitable for vegetarians

Diet Whey 1.8kg

Delicious protein to get you lean & ripped whilst keeping your muscles

Diet Whey Protein is a high grade protein supplement with added Thermoxen, clinically proven to aid weight loss. It also contains 39g of pure whey protein per serving which enhances the growth of lean muscle mass. You can choose from strawberry & raspberry flavour with REAL fruit pieces or chocolate flavour for an instant-mixing, delicious shake.

  • 39g of pure whey protein per serving
  • The original fat burning protein
  • Suitable for both men & women


In stock.
Usually dispatched in 24 hours.

Diet Whey by LA Muscle is a premium protein powder that has been formulated using the highest Pharma Grade protein as well as the clinically proven Glucomannan found in LA Muscle's incredible Thermoxen weight loss supplement; Glucomannan has been proven to contribute to and aid weight loss. Diet Whey mixes easily and rapidly with water to give you a creamy, delicious shake and it's available in two tasty natural flavours.

Diet Whey will help you preserve/build lean muscle mass, aid recovery and assist your weight loss goals. Just look at what you get with Diet Whey:

  • 39g of pure LA Whey protein per serving – the best 100% whey protein powder on the market
  • Contains 1g Thermoxen per serving clinically proven for weight loss
  • Contains the exclusive quick-dried Glucomannan which is ultra-pure
  • 8g fibre per serving for total colon cleansing & detox
  • The Strawberry and Raspberry flavour contains delicious real fruit pieces
  • All amino acids and BCAAs essential for maximum muscle growth and strength
  • Unisex product Ideal for men and women looking to sculpt a lean physique
  • Virtually no saturated fats
  • High potassium-sodium ratio, to relieve and reduce water retention, helping expose those six pack abs!
  • Not over-processed, so the protein is 100% intact and not denatured in any way
  • Triple filtrated protein to remove all impurities
  • High Biological Value of 159+ which means you don’t have to use as much (more cost effective than cheaper proteins)
  • Super-nitrogen-depositing power, meaning protein synthesis is increased and more protein turns to muscle
  • Powerful weight loss meal replacement - just replace one meal a day with 2 scoops of Diet Whey

Diet Whey Slimming Protein Shake

You have never experienced anything like Diet Whey, that is a 100% guarantee. It is delicious, creamy, instant mixing, high in protein and allows you to burn fat whilst building muscle. Diet Whey can be used by anyone wanting to build lean muscles and keep body fat levels low and it can also be used by those who want to lose weight. It is especially super-effective for rapid weight loss when you supplement one meal and one snack per day with Diet Whey.

Choice protein: Men's Fitness Magazine

Serving size - 60g (2 scoops)

Servings Per Container Size - 30


Per serving

201 Kcal
Of which sugars
Of which saturates

Strawberry & Raspberry Flavour

Whey Protein Concentrate (Milk), Emulsifier (Soya Lecithin), Inulin, Natural Flavourings, Freeze Dried Fruit Pieces (Strawberry and Raspberry), Konjac Glucomannan, Citric Acid, Colour (Beetroot Red), Thickener: (Xanthan Gum), Sweetener (Steviol Glycosides)

Chocolate Flavour

Whey Protein Concentrate (Milk), Emulsifier (Soya Lecithin), Inulin, Natural Flavourings, Reduced Fat Cocoa Powder, Konjac Glucomannan, Thickener: (Xanthan Gum), Sweetener (Steviol Glycosides)

*Nutritional values based on Chocolate Flavour

Supply: 1.8kg.

How to take: Add 1-2 scoops to water and blend to a smooth texture. Diet Whey is best mixed in an LA Muscle Shaker. You can vary the amount of liquid added to suit your taste. Try cooking with Diet Whey or add it to ice-cream or yoghurt.

For Muscle Building: 1-2 scoops of Diet Whey immediately after training. 1-2 scoops before sleep. If you want more muscle, 1-2 scoops upon waking up or any other time of the day.

For Fat Loss: Replace 1 meal and 1 snack a day with 1-2 scoops of Diet Whey.

Each tub will last: 1 month

Supplements not medicines
LA Muscle supplements are "Nutritional Supplements". They are not medicines or drugs. They do not prevent, diagnose, restore, correct or modify any physiological condition or function in human beings. They will not treat diseases; they are not medicines. If you have a medical condition, please refer to your physician. If you get "any" side effects at all, stop use and refer to your doctor immediately. Never take more than the recommended dosage. Male hormone boosters are for people over 18 and mature for their age. If in doubt about anything at all, please contact LA Muscle.

LA Muscle Tubs
In line with LA Muscle’s Green Policy and reducing carbon footprint, LA Muscle is using a “ONE SIZE” tub for most supplements. This is to reduce the use of plastic tubs by having tens of different sizes for various products and having to over-manufacture plastics. As a result, you may find that in many LA Muscle supplements, the tub is much bigger than the total size of all pills. You are still getting the exact number of pills/capsules/powder you have paid for, however there will be extra space at the top, giving the impression to some people that the tub is not full. This is solely because of our commitment to reducing the need for making extra plastic tubs. LA Muscle does not use cotton wool to fill up the extra space because cotton wool can attract microbes. Your safety AND the protection of the planet are big parts of the LA Muscle ethos.

by Michael Campbell on 7th May 2019
The Whey products have always been top draw, so very happy so far
Was this review helpful? Yes (1) No (0)
by Mark Haycock on 28th April 2019
I preferred the original whey product, but it’s been discontinued, the diet whey isn’t as easy to mix. I see they have discontinued it also. I plan to try to find another brand to buy protein from- LA Muscle seem to be moving away from this type of product- shame.
Was this review helpful? Yes (2) No (0)
by Zeeshan Saeed on 26th March 2018
Excellent protein powder.
Was this review helpful? Yes (2) No (0)
by James Coley on 26th February 2018
The taste is amazing for the strawberry and raspberry one. Not too keen on the chocolate version. Great start to the day!
Was this review helpful? Yes (3) No (0)
by Stuart Sibley on 20th January 2018
Very tasty! Only used a few times while doing the DietMax stack as using a MRP shake.
Was this review helpful? Yes (2) No (0)
by Jennie Hoare on 6th August 2017
Very good protein powder
Was this review helpful? Yes (16) No (0)
by Nerijus Vaiciulis on 18th July 2017
Was this review helpful? Yes (15) No (0)
by Paul Crawley on 29th May 2017
I have been using the Diet Whey for just over 2 weeks now. I find it that it mixes easily with little shaking, it tastes good and provides me with the protein boost I need after my morning workouts.
Was this review helpful? Yes (15) No (0)
by Saneliso Ndlovu on 21st May 2017
I have been using this product and I can see results on my fat loss and I enjoy it after my workout and also with my porridge in the morning.
Was this review helpful? Yes (15) No (0)
by Frank Turner on 11th May 2017
One of the most delicious shakes I have come across and would most definitely order again.
Was this review helpful? Yes (15) No (0)
Have you stopped supplying whey protein altogether or is this temporary?
Asked by Katy Laird on 27th June 2019

Hi Katy, all of our protein range has been discontinued since last year.

Can I take this with norenteen heavyweight
Asked by ian jones on 28th December 2017

Hi Ian, yes you can.

Is it recommended to use if the goal is to build lean muscle and lose fat ? Or la whey gold ?
Asked by Abdallah Husain on 21st August 2016

Hi Abdallah, yes it can aid with lean muscle development as well as weight loss.

Can I use this whilst breastfeeding? Thanks
Asked by Kathleen Blakeway on 22nd July 2015

Hi Kathleen, although our products are completely natural and safe to use, we always recommend consulting your GP regarding this.

Does the diet whey contain gluten?
Asked by Penny Phillips on 30th June 2015

Hi Penny, no it is gluten free.

is diet whey lactose free? i'm coming to the end of my slim whey container and need to re-order some more whey asap, however i can not find it on the site anywhere.
Asked by bibi shah on 10th June 2015

Hi Bibi, no unfortunately it is not, however please note that Slim Whey wasn't either.

Thank you for your reply to my previous question. My dilemma of my next purchase is between Diet Whey or LA Whey Gold. My goal is not to get bigger physically, but I would like to be much more toned & defined muscles. Which is best do you think?
Asked by Wendy Walton on 3rd December 2014

Hi Wendy, to get to your goal we would recommend with using Diet Whey. Later on you could always switch to LA Whey Gold.

Hi, can you confirm what the difference is between Diet Whey and Slim Whey? Thank you
Asked by Wendy Walton on 30th November 2014

Hi Wendy, Diet Whey is an improved, more effective, tastier Slim Whey. It contains an amazing new EFSA-approved ingredient proven by scientific studies to help you lose weight and maintain healthy cholesterol levels.

How long before you can see results.
Asked by Mark Butland on 29th November 2014

Hi Mark, there is no set time to weight loss. As long as you are following a good training program, diet and supplementation then you can start to see results in as little as a few days.

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