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the claim

Wearing sunscreen lowers vitamin D levels.

the verdict
CONTESTED PARTIAL
Recorded sources
3 sources for · 2 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 wearing sunscreen lowers vitamin D levels?

Partly. Evidence is mixed and only partial: a Wikipedia reference and a Libya cross-sectional study indicate sunscreen use can reduce vitamin D synthesis or predict lower levels, while a 2023 review says sunscreen only minimally lowers vitamin D production and a South India retrospective found no correlation between limited sunscreen use and vitamin D levels.

Verdict: CONTESTED PARTIAL · 3 sources for, 2 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 · 3
Sunscreen
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Sunscreen. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Sunscreen

Evidence against · 2
Benefits and Risks of Sun Exposure to Maintain Adequate Vitamin D Levels.
2023
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JR, R. & SI, R. (2023). Benefits and Risks of Sun Exposure to Maintain Adequate Vitamin D Levels.. doi.org. https://doi.org/10.7759/cureus.38578

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More for · 2
Culture, Sun Exposure and Vitamin D Deficiency in Benghazi Libya
2018
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Culture, Sun Exposure and Vitamin D Deficiency in Benghazi Libya. (2018). hal.science. https://hal.science/hal-05357436v1

Is it healthy to sunbathe without sunscreen?
2014
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Is it healthy to sunbathe without sunscreen?. (2014). skeptics.stackexchange.com. https://skeptics.stackexchange.com/questions/22243/is-it-healthy-to-sunbathe-without-sunscreen

More against · 1
Vitamin D levels in non-users of sunscreen versus once-daily sunscreen users: A retrospective analysis from a cosmetic dermatology center in South India
2022
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Divyalakshmi, C., Golda, J., Sukumaran, P., Selvadurairaj, S., & Lourdhurajan, R. (2022). Vitamin D levels in non-users of sunscreen versus once-daily sunscreen users: A retrospective analysis from a cosmetic dermatology center in South India. doi.org. https://doi.org/10.25259/csdm_3_2022

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