Optimum Nutrition Glutamine Powder, l-Glutamine Amino Acid Powder, Food Supplement, Pre and Post Workout Shake, Unflavoured, 123 Servings, 630 g


  • Unflavoured, glutamine powder sports drink from Optimum Nutrition delivering 5 g of L-Glutamine per serving *
  • Glutamine is one of the most abundant amino acids found in muscles. Amino acids are the building blocks of protein
  • Add to your protein shake, before or after CrossFit workout, running, jogging, swimming, fitness, strength and training
  • Mix 1 level scoop (5.1 g) in a glass of cold water (240 ml), your favourite sports drink or Optimum Nutrition shake to create a tasty, lump-free smoothie
  • *Amino acids are building blocks of protein. Protein contributes to muscle gain and maintenance of muscle mass and supports bones: COMMISSION REGULATION (EU) No 432/2012 of 16 May 2012
Last updated on March 29, 2024 7:39 am
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EAN: 415F5B59 SKU: 415F5B59 Category: Tag:

Additional information

Product Name



‎630 Grams


‎630.0 gram

Storage Instructions

‎In a cool, dry place

Serving Recommendation

‎One Scoop

Manufacturer contact

‎4 Waterside, Citywest Business Campus, Dublin 24, Ireland

Country of origin

‎United Kingdom


‎Optimum Nutrition



Age Range Description


Average Rating


( 8 Reviews )
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8 Reviews For This Product

  1. 08

    by Daniele Maria Sagrillo


  2. 08

    by Shaho

    The media could not be loaded.

     product arrived open and with the security seal violated.

  3. 08

    by Jacques

    Unflavoured is great for stacking with whey or bcaa – you wont even notice it’s there (which is good because it tastes horrendous on it’s own). I definitely notice recovery time reduces when i take glutamine.

  4. 08

    by R-men


  5. 08

    by Rebecca

    This isnt fake at all . All of the people complaining that there isnt any safety seal ( The white circular foil seal once opening the lid )………there is ! It’s just came off with the lid . Look under the lid and the seal is there and must of came off when unscrewing as mine did . Very common and happens with lots of supplements but it is sealed and have got batch numbers so dont worry about it being fake it’s not . Great powder

  6. 08

    by Amazon Customer

    Good product

  7. 08

    by Adriana S.

    I have read a lot of reviews related to concerns with regards the product authenticity. I have purchased once, but no issues.
    Purchased again, but this time I have contacted Optimum Nutrition with images of the product received and also relevant batch number. They have got back to me to confirm that the product is indeed authentic. So please refer to copy of the email attached and also images of the product which does come SEALED. Hope this helps!

  8. 08

    by Adriana S.

    I have used L-glutamine to supporting physical exercise.
    This is quite a big container so it’s a lot of it for the cost however I do not find it as effective as my previous brand. Must admit I actually thought it was my usual, however this came without a seal and just not as effective at supporting performance and recovery

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Optimum Nutrition Glutamine Powder, l-Glutamine Amino Acid Powder, Food Supplement, Pre and Post Workout Shake, Unflavoured, 123 Servings, 630 g