Do seed oils block cholesterol to vitamin D? Vitamin D as sunscreen Sunburn resistance of people who don’t eat seed oils
Summary by Google's LLM
In this video clip from Low Carb Down Under, Dr. Paul Mason presents a theory linking the consumption of industrial seed oils to a higher susceptibility to sunburn
Key Arguments and Claims:
- Vitamin D as Natural Sunscreen: Dr. Mason states that the body naturally vitamin D as a protective shield against UV/UVB radiation damage to DNA, rather than strictly for bone health
- The Cholesterol Connection: He references Ancel Keys’ historical “Seven Countries Study”, highlighting a data point that individuals with higher sun exposure had lower blood cholesterol levels. He explains this occurs because the body uses cholesterol to synthesize vitamin D
- Interference by Plant Sterols: He argues that plant sterols (phytosterols) absorbed from dietary seed oils interfere with normal cholesterol chemistry, specifically disrupting the skin’s ability to synthesize vitamin D
- Anecdotal Evidence: While acknowledging the evidence is largely anecdotal, he points out that a vast number of individuals on ketogenic internet forums report a noticeable resistance to sunburn after completely eliminating seed oils from their diet.
That’s not how evidence works.
If you claim Vitamin D has an effect that was unknown before, you need to provide evidence for that.
Without evidence, the default is “no known effect”.
psud is not making a claim, the effects of vitamin D protecting against sun damage is something we already know about. It is not hitherto unknown. Please see my other post on the topic.
Since your claim goes against the scientific literature, he is correct in asking for your sources, so we can verify them.