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Torres EAFS, Pinaffi-Langley ACDC, Figueira MDS, Cordeiro KS, Negrão LD, Soares MJ, da Silva CP, Alfino MCZ, Sampaio GR, de Camargo AC. Effects of the consumption of guarana on human health: A narrative review. Compr Rev Food Sci Food Saf 2021; 21:272-295. [PMID: 34755935 DOI: 10.1111/1541-4337.12862] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 09/22/2021] [Accepted: 09/23/2021] [Indexed: 12/29/2022]
Abstract
Guarana (Paullinia cupana) is a plant from the Amazon region with cultural importance. Despite its early ancestral use by indigenous tribes, the first reports regarding the benefits of guarana consumption for human health were published in the 19th century. Since then, the use of guarana seed in powder and extract forms has been studied for its diverse effects on human health, such as stimulating, anti-inflammatory, antioxidant, anticancer, hypocholesterolemic, and anti-obesity effects. These effects are attributed to the high content of bioactive compounds found in guarana seeds, especially methylxanthines and flavonoids. In fact, the Brazilian Food Supplement Law has officially acknowledged guarana as a source of bioactive compounds. The number and diversity of studies focused on guarana and human health are increasing; thus, organizing and describing the available evidence on guarana and its applications is necessary to provide a framework for future studies. In this narrative review, we have organized the available information regarding guarana and its potential effects on human health. Guarana produces unique fruits with great potential for human health applications. However, the available evidence lacks human studies and mechanistic investigations. Future studies should be designed considering its applicability to human health, including intake levels and toxicity studies.
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Affiliation(s)
- Elizabeth A F S Torres
- Department of Nutrition, School of Public Health, University of Sao Paulo, Sao Paulo, Brazil
| | | | | | - Karina Silva Cordeiro
- Department of Nutrition, School of Public Health, University of Sao Paulo, Sao Paulo, Brazil
| | - Leonardo Dias Negrão
- Department of Nutrition, School of Public Health, University of Sao Paulo, Sao Paulo, Brazil
| | - Maiara Jurema Soares
- Department of Nutrition, School of Public Health, University of Sao Paulo, Sao Paulo, Brazil
| | - Cintia Pereira da Silva
- Department of Nutrition, School of Public Health, University of Sao Paulo, Sao Paulo, Brazil
| | | | - Geni Rodrigues Sampaio
- Department of Nutrition, School of Public Health, University of Sao Paulo, Sao Paulo, Brazil
| | - Adriano Costa de Camargo
- Laboratory of Antioxidants, Nutrition and Food Technology Institute, University of Chile, Santiago, Chile
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Nutritional Ergogenic Aids in Racquet Sports: A Systematic Review. Nutrients 2020; 12:nu12092842. [PMID: 32957505 PMCID: PMC7551004 DOI: 10.3390/nu12092842] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 09/11/2020] [Accepted: 09/15/2020] [Indexed: 12/26/2022] Open
Abstract
A nutritional ergogenic aid (NEA) can help athletes optimize performance, but an evidence-based analysis is required in order to support training outcomes or competition performance in specific events. Racquet sports players are regularly exposed to a high-intensity workload throughout the tournament season. The activity during a match is characterized by variable durations (2–4 h) of repeated high-intensity bouts interspersed with standardized rest periods. Medline/PubMed, Scopus, and EBSCO were searched from their inception until February 2020 for randomized controlled trials (RCTs). Two independent reviewers extracted data, after which they assessed the risk of bias and the quality of trials. Out of 439 articles found, 21 met the predefined criteria: tennis (15 trials), badminton (three trials), paddle (one trial), and squash (two trials). Among all the studied NEAs, acute dosages of caffeine (3–6 mg/kg) 30–60 min before a match have been proven to improve specific skills and accuracy but may not contribute to improve perceived exertion. Currently, creatine, sodium bicarbonate, sodium citrate, beetroot juice, citrulline, and glycerol need more studies to strengthen the evidence regarding improved performance in racquet sports.
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Marques LLM, Ferreira EDF, Paula MND, Klein T, Mello JCPD. Paullinia cupana: a multipurpose plant – a review. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2019. [DOI: 10.1016/j.bjp.2018.08.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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