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the claim

Older people have a characteristic body odor linked to the compound 2-nonenal.

the verdict
INSUFFICIENT LEANING
Recorded sources
7 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that older people have a characteristic body odor linked to the compound 2-nonenal?

Unclear. Several sources support that older people have a characteristic body odor and that 2-nonenal is associated with aging-related body odor changes, but the link is described as suggested by one study, with another study failing to detect 2-nonenal and other hypotheses offered.

Verdict: PARTIAL LEAN · 7 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 7
2-Nonenal
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2-Nonenal. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/2-Nonenal

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More for · 6
Significant Reduction of Body Odor in Older People with a pH 4.0 Emulsion
2015
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Kemper, M., Bielfeldt, S., Knie, U., Wilhelm, K., & Abels, C. (2015). Significant Reduction of Body Odor in Older People with a  pH 4.0 Emulsion. doi.org. https://doi.org/10.3390/cosmetics2020136

Old person smell - Wikipedia
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Old person smell - Wikipedia. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Old_person_smell

Headspace Solid-Phase Microextraction/Gas Chromatography–Mass Spectrometry for the Determination of 2-Nonenal and Its Application to Body Odor Analysis
2021
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Saito, K., Tokorodani, Y., Sakamoto, C., & Kataoka, H. (2021). Headspace Solid-Phase Microextraction/Gas Chromatography–Mass Spectrometry for the Determination of 2-Nonenal and Its Application to Body Odor Analysis. doi.org. https://doi.org/10.3390/molecules26195739

Intake of New Zealand Blackcurrant Powder Affects Skin-Borne Volatile Organic Compounds in Middle-Aged and Older Adults
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Intake of New Zealand Blackcurrant Powder Affects Skin-Borne Volatile Organic Compounds in Middle-Aged and Older Adults. (n.d.). cir.nii.ac.jp. https://doi.org/10.1080/19390211.2021.1908479

Effect of New Zealand Blackcurrant Powder on Skin Emission of Volatile Organic Compounds in Middle Aged and Older Adults (P06-092-19)
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Effect of New Zealand Blackcurrant Powder on Skin Emission of Volatile Organic Compounds in Middle Aged and Older Adults (P06-092-19). (n.d.). cir.nii.ac.jp. https://doi.org/10.1093/cdn/nzz031.p06-092-19

The Smell of Age: Perception and Discrimination of Body Odors of Different Ages
2012
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Mitro, S., Gordon, A. R., Olsson, M. J., & Lundström, J. N. (2012). The Smell of Age: Perception and Discrimination of Body Odors of Different Ages. doi.org. https://doi.org/10.1371/journal.pone.0038110

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