Unfortunately, this deal has expired 3 days ago.
Posted 13 August 2023

The Bulk Protein Company - Serious Protein (Chocolate Flavour) 4kg / 133 servings W/Code

£3.99 ·
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I’ve just received an email about this and I’m tempted to give it a punt as I’d recently signed up to their year of next day delivery for £1. Use code PROTEIN25 to get this for £25. Shipping on orders under £49 is £3.99, or free over that amount.

It seems like a lot of protein for the money, so I’d be interested on hearing from anyone that’s tried this.

Product description from the website is pasted below, as I know these usually spark a debate on soy/ sweeteners etc:

Serious Protein - 4kg - 133 Servings

Here at The Bulk Protein Company we're serious about value. We're serious about creating the UK's number 1, premium quality protein powder at a fair and affordable price. Serious Protein is here! Serious Protein- The Facts: 24g Of High Quality Protein In Every Scoop! A Huge 133 Servings Per 4kg Tub! A Premium Blend of Whey Protein Concentrate, Micellar Casein, and Soy Protein Isolate! An Incredible 80% Protein, With Ultra-low Carbs, Sugars and Fats! In short, Serious Protein is the perfect protein powder for those looking to support muscle gain (As Protein contributes to the growth of muscle mass), or if you're on a calorie controlled diet and trying to lean out. It's designed to fit into every serious athlete's lifestyle by combining fast, slow, and medium speed digestion proteins into the same formula resulting in exceptional nutrient delivery and incredible results. Serious Protein is not about fancy packaging, high-carb flavours or the rip-off pricing... it's about amazing value, huge protein levels, and incredible results in your training and diet. If you're serious about training, Serious Protein is for you.

Amino Acid Profile

Amino Acid Per 100g of Product
Alanine 3.256
Arginine 6.248
Aspartic Acid 9.416
Glutamic Acid 15.84
Cysteine 1.056
Glycine 3.256
Histidine 2.112
Isoleucine 3.344
Valine 3.52
Leucine 6.072
Lysine 5.016
Methionine 1.056
Phenylalanine 4.224
Proline 4.136
Serine 4.4
Threonine 2.816
Tryptophan 0.528
Tyrosine 3.168
Nutritional Facts
Serving Size: 30g
Servings per Container: 133

Nutritional Information 100g Per / 30g serving
Kcal 381.00 / 114.3
KJ 1594.00 / 478.2
Protein (g) 80.86 / 24.258
Protein (g) 79.04 / 23.712
Carbohydrates (g) 12.56 / 3.768
of which Sugars (g) 5.35 / 1.605
Fibre (g) 0.13 / 0.039
Fats (g) 0.67 / 0.201
of which saturates (g) 0.10 / 0.03
Salt (g) 1.00 / 0.3

For best results consume 1 serving (30g) one to three times per day. Simply add 1 rounded scoop (30g) to 250ml of cold water or skimmed milk, shake well and enjoy.

Chocolate Flavour Ingredients
SOY Protein Isolate, Glutamine Peptides(WHEAT),MILKProtein Concentrate, Maltodextrin, Cocoa Powder, Flavouring, Sweetener (Sucralose).

Allergen Information:
For allergens, please see ingredients in bold/CAPITALS. Contains Soy, Milk and Gluten. Manufactured on equipment that processes products containing Milk, Soy,Egg, Gluten, Nuts and Peanuts.
Bodybuilding Warehouse More details at
Community Updates
Edited by a community support team member, 28 September 2023
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  1. Snuk's avatar
    If you're on a budget you can't beat this for the price. Don't listen to the anti soy people, it's a perfectly good form of protein and won't turn you into a girl after getting through half a tub if that's what you're worried about
  2. Ragdoll_Pigeon's avatar
    I use regularly. Soy is not whey, but is still a "complete" protein, and at £25+postage for a 4kg tub that is 24g protein per 30g serving its worth it. Sure it takes a proper good shake to mix well enough and it isn't as "nice" as the stuff you might pay 2-3x the price for, but it's good enough, a good price, and a good deal.

    As long as the tub doesn't explode during transit (edited)
  3. gabesdad's avatar
    Bought this once and persisted for a while then dumped it as far too gritty.
    Father-Jemima-Racktool's avatar
    Is that the story of you buying it or digesting it?
  4. Jbl_123's avatar
    Cheap for a reason. Buy with your eyes open and read the ingredients list carefully. Protein content artificially spiked by addition of glutamine.

    Quick search on Google for protein spiking glutamine peptide... (edited)
    nokiafusion's avatar
    And… glutamine peptides are good for you when training.
  5. JRiva's avatar
    The code isn’t working for me. Is it still working?
    TOFO's avatar
    Not working for me neither
  6. halfbakedjake's avatar
    Filthy soy
    charliecroker1966's avatar
    Come on then link any product at this price point or any at the non discounted price without soy?
  7. mfactor's avatar
    Cheap and cheerful , at that price its not going to be the best but did not expect it to be , if you are on a budget go for it
  8. uk3g's avatar
    I bought this after seeing a deal here. Should have stuck to and will be going back to, Optimum Nutrition Serious Mass. This has a very bitter powder taste ( I bought Vanilla flavour) and I've seen very little gain compared to when I used Serious Mass.
    ah99999's avatar
    Optimum Nutrition Serious Mass is a mass gainer (lots of calories) not just a protein powder. So assuming you're training right (it sounds like you were!) you'd make much more gains on the mass gainer than just protein.
  9. lukeyt890's avatar
    This stuff is vile and gave me the runs, avoid like a wide berth
  10. nokiafusion's avatar
    Why just chocolate?
  11. keiran_broadhead's avatar
    Had This before. Its not too bad tbf. I only had it blended though
  12. umirza85's avatar
    This is great if you can get the chocolate flavour....the others are painful to get through.
  13. madcap's avatar
    this is horrible to drink, nice with greek yogurt
  14. jamie915's avatar
    This is the most revoltingly vile protein powder that has ever existed - I'm shocked they still sell it (Or that people must still be buying it for that matter).

    It's like drinking liquid sand, it's a punishment to put this stuff in your mouth. But no pain no gain am I right??
    dap54's avatar
    It’s supposed to work not taste nice, kinda like medicine
  15. E30Dan's avatar
    Id rather just eat red meat and eggs tbh
    Ragdoll_Pigeon's avatar
    Much cheaper
  16. Gordon_Riley's avatar
    Code not working?
  17. oemer.sahbaz's avatar
    Look for something above 11% of leucine.
  18. CroMoly's avatar
    Wouldn't touch it with a bargepole. If you wait around for deals and snap up loads of those deals when they appear - you can do better. I just got several 500g bags of whey from bodybuilding warehouse for £5 each inc delivery.
    TOFO's avatar
    Are there any good deals going on now?
  19. NeverBagHolding's avatar
    I bought this as the price is really good and thought I’d try some protein.

    Arrived a couple days late and the container seems to be broken in the box which is strange as there is bubble wrap around it and the box looks ok overall.

    Will update what the company says to this.
    Fishcann's avatar
    Did you ever get a reply from them about this? My delivery was the same but the lid was off and over half the tub was in the box (and pouring through the gaps). I have emailed them every day for the past 2 weeks and they haven't responded at all. Last time I use them that's for sure.
  20. Marco_Diniz's avatar
    Got it, it's good.
    Keep in mind:
    - Although soy protein is a good source of protein it's slow absorption. I have it throughout the day, but right after workout better to have whey.
    - great for having with yogurt, milky cereal or for microwave cakes. Don't recommend to drink as a shake (doesn't mix great)
  21. tryandhelp's avatar
    Link .com doesn't work but .co.uk does

    doesn't work

    Working code

    £34.99£24.50 (edited)
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