Jump to content
This site uses cookies. Continued use is acceptance of our Terms of Use and Privacy Policy. More Info... ×
  • Welcome to Celiac.com!

    You have found your celiac tribe! Join us and ask questions in our forum, share your story, and connect with others.




  • Celiac.com Sponsor (A1):



    Celiac.com Sponsor (A1-M):


  • Get Celiac.com Updates:
    Help Celiac.com:
    eNewsletter
    Donate
  • Record is Archived

    This article is now archived and is closed to further replies.

    Jefferson Adams
    Jefferson Adams

    Gluten-free Diet Useless for Athletes Without Celiac Disease

    Reviewed and edited by a celiac disease expert.

    Celiac.com 06/26/2015 - The vast majority of people who follow a gluten-free diet do not have celiac disease or gluten intolerance. Many people who follow a gluten-free diet do so because of perceived health benefits. This includes a number of athletes who feel that the diet improves their energy levels, performance and recovery time.

    Photo: CC--Raghu MohanIn fact, the adoption of gluten-free diets by non-celiac athletes has risen sharply in recent years due to perceived ergogenic and health benefits. New research however, casts doubt on those ideas.

    Celiac.com Sponsor (A12):
    The research was conducted by a team that set out to evaluate the effects of a gluten-free diet (GFD) on exercise performance, gastrointestinal (GI) symptoms, perceived well-being, intestinal damage, and inflammatory responses in non-celiac athletes. The research team included Dana Lis, Trent Stellingwerff, Cecilia M. Kitic, Kiran D.K., and James Fell.

    For their study, they looked at thirteen competitive endurance cyclists, 8 male, 5 female, with no positive clinical screening for celiac disease or history of irritable bowel syndrome.

    These cyclists followed a seven day gluten-containing diet (GCD) or GFD separated by a 10-day washout in a controlled randomized double-blind, cross-over study. Cyclists ate a GFD alongside either gluten-containing or gluten-free food bars, while the team controlled habitual training and nutrition behaviors. Total gluten intake was 16g wheat gluten per day.

    During each diet, cyclists completed the Daily Analysis of Life Demand for Athletes (DALDA) and GI questionnaires, both before and after exercise and daily.

    On day seven cyclists completed a sub-maximal steady-state (SS) 45 minute ride at 70% peak power followed by a 15 minute time-trial (TT).

    The researchers took blood samples before exercise, post SS and post TT to determine intestinal fatty acid binding protein (IFABP) and inflammatory markers (cytokine responses: IL-1[beta], IL-6, IL-8, IL-10, IL-15, TNF-[alpha]). They employed mixed effect logistic regression to analyze data.

    The results showed that TT performance was basically the same (p=0.37) between the GCD (245.4+/-53.4kJ) and GFD (245.0+/-54.6kJ).

    GI symptoms during exercise, daily, and DALDA responses were also similar for each diet (p>0.11). There were no significant differences in IFABP (p=0.69) or cytokine (P>0.13) responses.

    These results show that a short-term GFD has no impact on performance, GI symptoms, well-being, or upon a select indicator of intestinal injury or inflammatory markers in non-celiac endurance athletes.

    So, basically, if you're an athlete who does not have celiac disease, then a gluten-free diet is not going to provide any performance or recovery benefits to you.

    Source:

    • Open Original Shared Link


    User Feedback

    Recommended Comments

    Guest Lauren

    Posted

    I know someone with juvenile hemochromatosis. His iron for 60 years has been extremely high despite frequent phlebotomies. He is a dedicated athlete but has low oxygen capacity. He tried gluten free and after a couple of weeks he had more than half his iron disappear. Needless to say the medical people were incredulous. His version of gluten free is to start the day with gluten free food but never give up any nice treats he comes across in his travels. Hugely successful for him.

    Link to comment
    Share on other sites
    Guest Michael

    Posted

    This study is illegitimate, in my opinion. First, you did not give any credentials for the team of researchers, and the design of the study shows that they do not know what they are doing. The athletes need to be on a GFD much longer than a week, and they need to look at their results in at least two real world races. The researchers obviously were looking to disprove the value of a gluten-free diet and don't know anything about gluten issues.

    Link to comment
    Share on other sites
    Guest James

    Posted

    As usual a limited study with sweeping conclusions. You could do better reporting to emphasize, as mentioned in the second to last paragraph, that all this study really shows is that a week long gluten free diet doesn't show a benefit. But as any number of gluten sensitive people will tell you it can take weeks to months to see a benefit from following a GFD. The last paragraph seems completely unnecessary, what's with all the "unless you have celiac disease" stuff? This study hardly proves that a GFD doesn't improve long term health and performance, only that in the very short term it doesn't change symptoms and performance in people who had no symptoms to start with.

    Link to comment
    Share on other sites
    Guest KDog

    I would like to know the source for the comment: the vast majority of people on a GFD do not have celiac disease. Further, I stopped listening to the rest of the article when I realized the study involves 13 people (sample size too small for normal distribution). The author did a great job summarizing the study, but I don't believe the conclusions he came to are proven-given the information he wrote.

    Link to comment
    Share on other sites
    Guest KDog
    This study is illegitimate, in my opinion. First, you did not give any credentials for the team of researchers, and the design of the study shows that they do not know what they are doing. The athletes need to be on a GFD much longer than a week, and they need to look at their results in at least two real world races. The researchers obviously were looking to disprove the value of a gluten-free diet and don't know anything about gluten issues.

    Michael, I am not sure if the researchers set out to disprove the value of a GFD, but they did exactly that in a small number of people. Why do you believe they know nothing about gluten issues?

    Link to comment
    Share on other sites
    Guest KDog
    I know someone with juvenile hemochromatosis. His iron for 60 years has been extremely high despite frequent phlebotomies. He is a dedicated athlete but has low oxygen capacity. He tried gluten free and after a couple of weeks he had more than half his iron disappear. Needless to say the medical people were incredulous. His version of gluten free is to start the day with gluten free food but never give up any nice treats he comes across in his travels. Hugely successful for him.

    I know someone who believes in ghosts. Also, if I'm not sure what incredulous means, but if it means they were looking for sources of blood loss to ensure he was not bleeding to death, then I trust their judgement.

    Link to comment
    Share on other sites
    Guest Mary Thorpe

    Posted

    I have seen no mention of non-celiac gluten sensitivity. This class of people was not considered. I may well be in that category (undiagnosed). I know personally that I do not do well at all on gluten, sometimes being flattened/prostrated with flu like symptoms and migraine. That would not bode well for athletic performance.

    Link to comment
    Share on other sites


    Guest
    This is now closed for further comments

  • Get Celiac.com Updates:
    Help Celiac.com:
    Donate
  • About Me

    Jefferson Adams

    Jefferson Adams is Celiac.com's senior writer and Digital Content Director. He earned his B.A. and M.F.A. at Arizona State University. His articles, essays, poems, stories and book reviews have appeared in numerous magazines, journals, and websites, including North American Project, Antioch Review, Caliban, Mississippi Review, Slate, and more. He is the author of more than 2,500 articles on celiac disease. His university coursework includes studies in science, scientific methodology, biology, anatomy, physiology, medicine, logic, and advanced research. He previously devised health and medical content for Colgate, Dove, Pfizer, Sharecare, Walgreens, and more. Jefferson has spoken about celiac disease to the media, including an appearance on the KQED radio show Forum, and is the editor of numerous books, including "Cereal Killers" by Scott Adams and Ron Hoggan, Ed.D.

    >VIEW ALL ARTICLES BY JEFFERSON ADAMS

     


  • Celiac.com Sponsor (A17):
    Celiac.com Sponsor (A17):





    Celiac.com Sponsors (A17-M):




  • Related Articles

    Jefferson Adams
    Celiac.com 08/30/2013 - World's top-ranked tennis star, Novak Djokovic credits his recent success on the court to his gluten-free diet.
    Fans looking for nutrition tips from the Serbian tennis master can look no further than Djokovic's new book "Serve to Win: The 14-Day Gluten-Free Plan for Physical and Mental Excellence''
    The book, described as a ''nutrition-based performance guide," will be released by Zinc Ink/Random House before the US Open tournament later this summer.
    Since adopting a "performance-focused" gluten-free diet in late 2010, Djokovic has won six of his seven Grand Slam tournament championships. In 2011, he won Wimbledon and the Australian and US Opens. In 2012 and 2013, he won the Australian Open again.
    Djokovic says that his gluten-free fueling has made...


    Jefferson Adams
    Celiac.com 10/11/2013 - World No.1 tennis player Novak Djokovic credits a gluten-free diet with strong improvement in his performance and his success on the court.
    Now, word comes that Djokovic has got his pet dog eating gluten-free, as well. In 'Serve To Win', Djokovic's book about his gluten-free diet, he writes of a marked improvement in his health and well-being since he discovered his intolerance to gluten, and began eating gluten-free.
    According to Djokovic, he has even put his dog, Pierre, on a gluten-free diet, and the dog has also become more healthy.
    Dogs can, in fact, react to gluten in pet food. You can read more about that in an earlier article, Gluten and Toxins in Pet Foods: Are they Poisoning Your Pets?
    The article discusses gluten in pet foods, and the questionable...


    Jefferson Adams
    Celiac.com 11/27/2013 - After dropping 10 pounds over the summer, Miami Heat shooting guard Ray Allen is touting the benefits of his gluten-free, Paleo diet.
    The 6-foot-5 Allen, who enters the 2013-2014 NBA season at his former college weight of 197 pounds, says that weight loss was not his goal when he embarked on the gluten-free diet.
    At 38, Allen stresses the importance quick recovery from rigorous training sessions and NBA games. His gluten-free Paleo eating plan emphasizes high-quality animal protein, fat (including healthy saturated fats), vegetables and fruits, and excludes sugar, gluten, dairy, legumes, starches, alcohol and processed foods.
    Allen told the Miami Herald that "Recovery...is so much more important now that I’ve gotten older. I’ve learned how to manage my ...


    Jefferson Adams
    Celiac.com 07/08/2014 - Gluten-free tennis superstar Novak Djokovic won his second Wimbledon title by outlasting the Swiss player, and seven-time champion, Roger Federer in five sets last Sunday.
    Up 5-2 in the fourth set, Djokovic was unable to capitalize at match point, but held on for a 6-7 (7), 6-4, 7-6 (4), 5-7, 6-4 victory at Centre Court.
    The championship returns the 27-year-old Serb to the world’s No. 1 ranking. Djokovic has seen his fortune improve since moving to a gluten-free diet, and credits his subsequent successes on court to his diet and to his mental conditioning.
    The rivalry between Djokovic and Federer has remained evenly balanced over the years. The two have faced each other 35 times, with Federer leading 18–17.
    They have faced off in ...


  • Recent Activity

    1. - CatherineWang replied to B1rdL0ver's topic in Related Issues & Disorders
      40

      Dealing with constant nausea and just feeling awful.

    2. - cristiana replied to BunnyBrown's topic in Related Issues & Disorders
      3

      Recently had my esophagus dilated

    3. - cristiana replied to twe0708's topic in Post Diagnosis, Recovery & Treatment of Celiac Disease
      54

      How Long Do Celiac Patients Live?

    4. - Exchange Students replied to Exchange Students's topic in Parents, Friends and Loved Ones of Celiacs
      2

      Exchange Students who are celiac in need of host

    5. - Scott Adams replied to Exchange Students's topic in Parents, Friends and Loved Ones of Celiacs
      2

      Exchange Students who are celiac in need of host


  • Celiac.com Sponsor (A19):



  • Member Statistics

    • Total Members
      120,162
    • Most Online (within 30 mins)
      7,748

    Lenabeana
    Newest Member
    Lenabeana
    Joined

  • Celiac.com Sponsor (A20):


  • Forum Statistics

    • Total Topics
      120.2k
    • Total Posts
      1m

  • Celiac.com Sponsor (A22):





  • Celiac.com Sponsor (A21):



  • Popular Now

    • Sunflowers06
      6
    • Momkaren
      10
    • Elizabeth M Blair
      5
    • B1rdL0ver
    • twe0708
      54
  • Popular Articles

    • Scott Adams
    • Scott Adams
    • Scott Adams
    • Scott Adams
    • Scott Adams
  • Upcoming Events

×
×
  • Create New...