this post was submitted on 17 Jun 2026
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Do seed oils block cholesterol to vitamin D? Vitamin D as sunscreen Sunburn resistance of people who don't eat seed oils

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[–] xep@discuss.online 2 points 4 hours ago* (last edited 4 hours ago)

Humans produce melanin as natural sunscreen, not vitamin D

Please see


https://www.explorationpub.com/Journals/em/Article/1001225

While UV-induced photoaging causes a detrimental impact on the skin, the UVB induced cutaneous synthesis of vitamin D protects the skin from various stresses.

The paper covers some of the mechanisms, it's a good read and will improve your understanding of our body. Melanin isn't the only protective factor.


https://pubmed.ncbi.nlm.nih.gov/23069805

We present data to show that 1,25(OH)(2)D(3) protects skin cells from at least three forms of UV-induced DNA damage, and provide further evidence to support the proposal that a reduction in RNS by 1,25(OH)(2)D(3) is a likely mechanism for its photoprotective effect against oxidative and nitrative DNA damage, as well as cyclobutane pyrimidine dimers.

Not open access, so you'll have to find the full paper yourself.