Bacterial breakdown of sweat causes socks to develop a foul odor.
Scientific literature confirms that body and clothing odors, such as those in socks and sportswear, are generated when cutaneous microflora metabolize the components of human sweat.
The retrieved literature consistently supports the scientific understanding that human sweat interacts with skin microorganisms to produce malodors. Paper [4] directly addresses how sweat in textiles breeds microbiomes causing malodor, while Paper [5] details how bacterial flora produce body odors and how suppressing these bacteria reduces odor intensity. Therefore, the claim is well supported.
Chang Y, Wang X. Sweat and odor in sportswear - A review.. 2023. https://doi.org/10.1016/j.isci.2023.107067
Paper [4] discusses how sportswear soaked by sweat becomes a breeding ground for the microbiome, acting as a direct source of malodor.
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Tadashi Fujii, Shota Inoue, Yu Kawai, Takumi Tochio, Kyoko Takahashi. Suppression of axillary odor and control of axillary bacterial flora by erythritol. 2021. https://doi.org/10.1111/jocd.14201
Paper [5] demonstrates that bacterial flora in sweat-prone areas produce body odors, which can be mitigated by inhibiting bacterial growth.
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