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Beta-Glucan için Upper Respiratory Tract Infections

A Kanıt Birden fazla büyük klinik çalışma tutarlı biçimde önemli faydalar ortaya koymaktadır.

Meta-analysis of 13 randomized controlled trials shows yeast beta-glucan may help reduce the incidence, number of episodes, and duration of upper respiratory tract infections compared to placebo. A 16-week RCT with 162 participants found 25% reduction in symptomatic cold infections.

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Sonuç

Meta-analysis of 13 randomized controlled trials shows yeast beta-glucan may help reduce the incidence, number of episodes, and duration of upper respiratory tract infections compared to placebo. A 16-week RCT with 162 participants found 25% reduction in symptomatic cold infections.

Key Study Findings

Randomized Controlled Trial
The anti-infective effect of β-glucans in children.
Dose: 10 mg vs: Placebo Outcome: Body weight Etki: None None

Popülasyon: None

In Vitro
Dry blood spot samples to monitor immune-associated mRNA expression in intervention studies: Impact of Baker's …
Dose: 250 mg/d vs: None Outcome: oxidative stress markers Etki: None None

Popülasyon: None

Randomized Controlled Trial 12 weeks Double-blind
β -Glucan Improves Protective Qi Status in Adults with Protective Qi Deficiency-A Randomized, Placebo-Controlled, and …
Dose: None vs: Placebo Outcome: Protective Qi status improvement Etki: None None

Popülasyon: Adults with Protective Qi deficiency

Meta-Analysis
Effects of yeast β-glucans for the prevention and treatment of upper respiratory tract infection in …
Dose: 95% vs: placebo Outcome: None Etki: OR = 0.345 p < 0.001

Popülasyon: healthy subjects

Randomized Controlled Trial n=69
Soluble and Insoluble Yeast β-Glucan Differentially Affect Upper Respiratory Tract Infection in Marathon Runners: A …
Dose: 250 mL/d vs: Placebo Outcome: None Etki: None None

Popülasyon: URTI patients

Randomized Controlled Trial n=132 Double-blind
Beverage Containing Dispersible Yeast β-Glucan Decreases Cold/Flu Symptomatic Days After Intense Exercise: A Randomized Controlled …
Dose: 250 mL/d vs: Placebo Outcome: None Etki: None p < .05

Popülasyon: URTI patients

Key Statistics

13

Çalışmalar

2000

Katılımcılar

Positive

A

Derece

Referenced Papers

International journal for … 2024 5 atıf

Dosage & Usage

mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units

Yaygın Kullanılan Dozajlar

general:
250-500 mg/day
immunesupport:
250-750 mg/day

Üst sınır: No established UL

Araştırmalarda İncelenen Dozajlar

Dozaj Süre Etki N
10 mg -- Positive --
250 mg/d -- Positive --
None 12 weeks Positive --
95% -- Positive --
250 mL/d -- Mixed 69
250 mL/d -- Neutral 132
900 mg 16.0 weeks Positive 299
367 mg 12.9 weeks Positive 34

En iyi alım zamanı: On empty stomach for optimal immune activation

Safety & Side Effects

Bildirilen Yan Etkiler

  • Generally very well tolerated
  • Mild gastrointestinal effects (bloating)
  • Allergic reactions in yeast-sensitive individuals

Bilinen Etkileşimler

  • Immunosuppressant medications (may counteract immunosuppression)
  • Generally few known drug interactions

Tolere edilebilir üst alım: No established UL

Herhangi bir takviye kullanmaya başlamadan önce mutlaka sağlık uzmanınıza danışın.Herhangi bir takviye başlatmadan önce her zaman sağlık uzmanınıza danışın.

Frequently Asked Questions

Does Beta-Glucan help with Upper Respiratory Tract Infections?
Based on 13 studies with 2,000 participants, there is strong evidence from multiple clinical trials that Beta-Glucan may support Upper Respiratory Tract Infections management. Our evidence grade is A (Strong Evidence).
How much Beta-Glucan should I take for Upper Respiratory Tract Infections?
Studies have used various dosages. A commonly studied range is 250-500 mg/day. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Beta-Glucan?
Reported side effects may include Generally very well tolerated, Mild gastrointestinal effects (bloating), Allergic reactions in yeast-sensitive individuals. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Beta-Glucan and Upper Respiratory Tract Infections?
We rate the evidence as Grade A (Strong Evidence). This rating is based on 13 peer-reviewed studies with 2,000 total participants. The overall direction of effect is positive.

Şu durum için diğer içerikler: Upper Respiratory Tract Infections

References

  1. [1] Katarzyna Wzorek-Łyczko et al.. Int J Vitam Nutr Res. 2024. The anti-infective effect of β-glucans in children. doi:10.1024/0300-9831/a000793 PubMed
  2. [2] Brian K McFarlin et al.. Methods. 2023. Dry blood spot samples to monitor immune-associated mRNA expression in intervention studies: Impact of Baker's yeast beta glucan. doi:10.1016/j.ymeth.2023.09.006 PubMed
  3. [3] Jun-Rong Wu et al.. Chin J Integr Med. 2022. β -Glucan Improves Protective Qi Status in Adults with Protective Qi Deficiency-A Randomized, Placebo-Controlled, and Double-Blinded Trial. doi:10.1007/s11655-021-3444-0 PubMed
  4. [4] Kunxia Zhong et al.. Eur J Nutr. 2021. Effects of yeast β-glucans for the prevention and treatment of upper respiratory tract infection in healthy subjects: a systematic review … doi:10.1007/s00394-021-02566-4 PubMed
  5. [5] Eunice Mah et al.. J Diet Suppl. 2020. Beverage Containing Dispersible Yeast β-Glucan Decreases Cold/Flu Symptomatic Days After Intense Exercise: A Randomized Controlled Trial. doi:10.1080/19390211.2018.1495676 PubMed
  6. [6] Eunice Mah et al.. J Med Food. 2020. Soluble and Insoluble Yeast β-Glucan Differentially Affect Upper Respiratory Tract Infection in Marathon Runners: A Double-Blind, Randomized Placebo-Controlled Trial. doi:10.1089/jmf.2019.0076 PubMed
  7. [7] Tanita Dharsono et al.. J Am Coll Nutr. 2019. Effects of Yeast (1,3)-(1,6)-Beta-Glucan on Severity of Upper Respiratory Tract Infections: A Double-Blind, Randomized, Placebo-Controlled Study in Healthy Subjects. doi:10.1080/07315724.2018.1478339 PubMed
  8. [8] Malkanthi Evans et al.. Nutrients. 2019. Effect of a Euglena gracilis Fermentate on Immune Function in Healthy, Active Adults: A Randomized, Double-Blind, Placebo-Controlled Trial. doi:10.3390/nu11122926 PubMed
  9. [9] Brian K McFarlin et al.. J Diet Suppl. 2013. Baker's yeast beta glucan supplementation increases salivary IgA and decreases cold/flu symptomatic days after intense exercise. doi:10.3109/19390211.2013.820248 PubMed
  10. [10] E Angela Murphy et al.. Am J Physiol Regul Integr Comp Physiol. 2009. Benefits of oat beta-glucan and sucrose feedings on infection and macrophage antiviral resistance following exercise stress. doi:10.1152/ajpregu.00396.2009 PubMed
  11. [11] Shawn Talbott et al.. J Sports Sci Med. 2009. Effect of BETA 1, 3/1, 6 GLUCAN on Upper Respiratory Tract Infection Symptoms and Mood State in Marathon Athletes. PubMed
  12. [12] David C Nieman et al.. Med Sci Sports Exerc. 2008. Beta-glucan, immune function, and upper respiratory tract infections in athletes. doi:10.1249/MSS.0b013e31817057c2 PubMed
  13. [13] E A Murphy et al.. Am J Physiol Regul Integr Comp Physiol. 2008. Benefits of oat beta-glucan on respiratory infection following exercise stress: role of lung macrophages. doi:10.1152/ajpregu.00562.2007 PubMed
  14. [14] David C Nieman et al.. J Sports Sci. 2006. Nutritional strategies to counter stress to the immune system in athletes, with special reference to football. doi:10.1080/02640410500482982 PubMed
  15. [15] J M Davis et al.. Am J Physiol Regul Integr Comp Physiol. 2004. Effects of moderate exercise and oat beta-glucan on innate immune function and susceptibility to respiratory infection. doi:10.1152/ajpregu.00304.2003 PubMed

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