Soy-Based Tempeh Rich in Paraprobiotics Properties as Functional Sports Food: More Than a Protein Source

Abstract

To date, there has been no recent opinion that explores tempeh as a functional food that can improve sports performance. Hence, this opinion article aims to elaborate on recent findings on the potential effect on sports performance of soy-based tempeh. This opinion paper presents updated evidence based on literature reviews about soy-based tempeh and its relationship with sports performance. The paraprobiotic role of <i>Lactobacillus gasseri</i> for athletes has been found to restore fatigue and reduce anxiety. This is achieved by increasing protein synthesis activity in eukaryotic initiation factor-2 (EIF2) signaling known as an adaptive pathway for integrated stress response. In addition, these paraprobiotics prevent down-regulation associated with the oxidative phosphorylation gene, thereby contributing to the maintenance of mitochondrial function and recovery from fatigue. The authors believe that this opinion article will encourage researchers to continue to evolve soybean-based tempeh food products and increase the performance of athletes by consuming soy-based foods.

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