15% off L-Glutamine – buy now before it’s gone! [latest news]

Discussion in 'Health and Fitness' started by MyProtein, Jun 21, 2010.

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  1. [align=center]15% off L-Glutamine![/align]


    [align=center]15% off L-Glutamine-get it before it’s gone![/align]
    Premium grade, 100% pure L-Glutamine from Myprotein now has 15% off. One of the most important amino acids in forming protein and aiding muscle growth and repair, this product also helps to restore energy & glycogen levels. With a massive 15% off, this is the time to stock up on the vital amino acid L-Glutamine. Buy it now for a great discounted rate across all three sizes, from just £5.95 for 250g. Hurry as offer ends Sunday!

    250g price: £5.06 (RRP £5.95)
    500g price: £8.46 (RRP £9.95)
    1kg price: £15.26 (RRP £17.95)

    Read more or buy L-Glutamine now!


    *Offer ends Sunday June 27th 2010 or while promo stocks last, whichever is sooner.
  2. Still don't get the whole glutamine supplementation thing.

    After all, all of the studies to do with it were with cancer victims on chemo who were getting something like 50g a day intravenously fed.
    5g a day won't do anything (you'd probably only get 1g after it's been through the gastric system into the blood stream).
  3. During periods of intense training, your body can't make enough glutamine. Without an adequate supply of glutamine, muscle growth can be severely hampered as your body tries to recover from your last workout. Studies do show that strength athletes (such as powerlifters) have lower Glutamine levels than cyclists or runners. Other studies also show that during times of heavy metabolic stress (such as exercise) your Glutamine levels drop dramatically. As you can’t get sufficient supplies of L Glutamine from your body, you must consume the rest through your diet.

    Hiscock, N., & Mackinnon, L.T. (1998). A comparison of plasma glutamine concentration in athletes from different sports. Medicine and Science in Sports & Exercise, 30, 1693-1696
    Newsholme, E.A. (1994). Biomechanical mechanisms to explain immunosuppression in well-trained and overtrained athletes. International Journal of Sports Medicine, 15, S142-147
  4. I like it, you've come back with a reference.

    In said study, how much supplementation was required? Did they give them massive doses, witness a quicker recovery and leave it at that, or did they backtrack to find the sweet spot for each person and take an average.

    Seeing as there is 1-1.5g of glutamine in a 20g serving of everyday whey protein, would you be literally pissing your money down the toilet.

    Oh and btw

    Effect of glutamine supplementation combined with resistance training in young adults.

    Candow DG, Chilibeck PD, Burke DG, Davison KS, Smith-Palmer T.

    College of Kinesiology, University of Saskatchewan, Saskatoon, Canada.

    The purpose of this study was to assess the effect of oral glutamine supplementation combined with resistance training in young adults. A group of 31 subjects, aged 18-24 years, were randomly allocated to groups (double blind) to receive either glutamine (0.9 g x kg lean tissue mass(-1) x day(-1); n = 17) or a placebo (0.9 g maltodextrin x kg lean tissue mass(-1) x day(-1); n = 14 during 6 weeks of total body resistance training. Exercises were performed for four to five sets of 6-12 repetitions at intensities ranging from 60% to 90% 1 repetition maximum (1 RM). Before and after training, measurements were taken of 1 RM squat and bench press strength, peak knee extension torque (using an isokinetic dynamometer), lean tissue mass (dual energy X-ray absorptiometry) and muscle protein degradation (urinary 3-methylhistidine by high performance liquid chromatography). Repeated measures ANOVA showed that strength, torque, lean tissue mass and 3-methylhistidine increased with training (P < 0.05), with no significant difference between groups. Both groups increased their 1 RM squat by approximately 30% and 1 RM bench press by approximately 14%. The glutamine group showed increases of 6% for knee extension torque, 2% for lean tissue mass and 41% for urinary levels of 3-methylhistidine. The placebo group increased knee extension torque by 5%, lean tissue mass by 1.7% and 3-methylhistidine by 56%. We conclude that glutamine supplementation during resistance training has no significant effect on muscle performance, body composition or muscle protein degradation in young healthy adults.

    1. Candow DG, Chilibeck PD, Burke DG, Davison KS, Smith-Palmer T. Effect of glutamine supplementation combined with resistance training in young adults. Eur J Appl Physiol. 2001 Dec;86(2):142-9.

    2. Antonio J, Sanders MS, Kalman D, Woodgate D, Street C. The effects of high-dose glutamine ingestion on weightlifting performance. J Strength Cond Res. 2002 Feb;16(1):157-60.

    edit again- Cortisol reduces the output of glutamine from the body, being the lungs primarly.
    In that study from above, do they mention how it is supplemented? Oral or directly into the blood stream (as 80-90% is absorbed by the GI tract through oral supplementation and thus won't make it to the blood stream).
  5. Hi,

    There haven't been extensive studies conducted on the relationship between L-Glutamine and training, compared with Creatine for example, but the sheer amount of positive anecdotal evidence would suggest that for some individuals this supplement may be beneficial.

    L-Glutamine is required for the growth of cells in the muscles, and also plays an important role in repairing damaged tissues and in the healing process. According to research in the American Journal of Clinical Nutrition (61: 1058-1061, 1995) 2g of supplemental glutamine will lead to elevation of human growth hormone (hGH) 90 minutes post-workout without side effects. Also, exercise or lifestyle stress can rob glutamine stores from the body.

    Ultimately though, all results depends on the individual, as each person will react differently but based on anecdotal evidence and several studies we felt L-Glutamine to be an important supplement.
  6. I appreciate that. Creatine has been about since the 70's and had been mainstream since the 80's, primarily among body builders.

    Some people will respond, some people won't, it's based on the genetics of the person and their level of adaption to the training they have been doing (plus increased volume and stress).

    Unfortunately a lot of the laboratory based research has been either taken WAY out of context, embellished to sell the product to the un read or simply has the same results as a placebo, but not exactly packaged like that.

    Unfortunately anecdotal doesn't wash with me, but then again, that is my prerogative.

    On a side note,
    I would be interested in how the researchers distinguished between an elevation in hGH due to glutamine, or the fact that hGH increased after training anyway (the devil is in the detail isn't it).
    Sugar leads to a surge in growth hormone post workout (and subsequently a blunting in cortisol), but sugar can't be sold as well (and based on profit margin, is a poor replacement) as it is too 'ordinary'.
    I would also be inetersted to hear if that 2g supplementation was orally administered or went directly into the blood stream (re my previous comment about 80-90% being lost in the GI tract and not reaching the blood stream if taken orally).