Brazilian Fermented Beverage and Sports Performance

Kombucha produced with brazilian native fruits: probiotic potential and effects on the performance of futsal athletes

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

REBEC

Registry ID

RBR-3z56bpx

Enrollment

Registered

2026-04-10

Start date

2025-02-20

Completion date

Unknown

Last updated

2026-04-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Athletic Performance

Interventions

This is a randomized, double-blind, placebo-controlled clinical trial involving 40 volunteer participants from a professional futsal team based in the city of Campo Mourão. The total number of volunte

Eligibility

Age

18 Years to 25 Years

Inclusion criteria

Inclusion criteria: Participants of both genders may be selected; age range between 18 and 25 years old; non-smokers; those who have not consumed dietary supplements within one week prior to the start of the trial

Exclusion criteria

Exclusion criteria: Individuals who do not agree to participate in the study; individuals with chronic diseases; individuals who use vitamins; antioxidants; ergogenic agents; foods containing probiotics; patients who use antibiotics; anti-inflammatory drugs; subjects who have been absent from training and competitive activities due to overuse injuries for more than 7 days

Design outcomes

Primary

Measure	Time frame
It is expected that the consumption of kombucha combined with native fruits (juçara, grumixama, and jabuticaba) will lead to an increase in athletic performance and a reduction in immunological and metabolic markers in futsal athletes. Lipid and glycemic profiles will be analyzed from the athletes' blood plasma and urine through the analysis of total cholesterol and fractions, triacylglycerol, gamma-glutamyltransferase (GGT), alanine aminotransferase (ALT), aspartate aminotransferase (AST), glucose, and insulin, as well as ferritin and hemoglobin, using automated enzymatic and kinetic methodologies. The cytokines interleukin-1 beta (IL-1b), IL-6, IL-10, and tumor necrosis factor alpha (TNF-a) will be measured using a BD enzyme immunoassay kit. We will observe the aforementioned markers in all athletes at the start of the season, without intervention, and after kombucha or placebo intervention for up to 90 days of consumption during the game season	—

Measure

Time frame

It is expected that the consumption of kombucha combined with native fruits (juçara, grumixama, and jabuticaba) will lead to an increase in athletic performance and a reduction in immunological and metabolic markers in futsal athletes. Lipid and glycemic profiles will be analyzed from the athletes' blood plasma and urine through the analysis of total cholesterol and fractions, triacylglycerol, gamma-glutamyltransferase (GGT), alanine aminotransferase (ALT), aspartate aminotransferase (AST), glucose, and insulin, as well as ferritin and hemoglobin, using automated enzymatic and kinetic methodologies. The cytokines interleukin-1 beta (IL-1b), IL-6, IL-10, and tumor necrosis factor alpha (TNF-a) will be measured using a BD enzyme immunoassay kit. We will observe the aforementioned markers in all athletes at the start of the season, without intervention, and after kombucha or placebo intervention for up to 90 days of consumption during the game season

—

Secondary

Measure	Time frame
No secondary outcomes are expected	—

Countries

Contacts

Public ContactKarla Guergoletto

Universidade Estadual de Londrina

karla@uel.br+55(43)33715964

Outcome results

None listed

Source: REBEC (via WHO ICTRP) · Data processed: May 1, 2026