Travis
Member
- Joined
- Jul 14, 2016
- Messages
- 3,189
Ever go to the beach and observe how many people are sleeping in the late afternoon. Also ever feel tired after leaving the beach. I layed out by the pool yesterday and...fell asleep! So @Travis is correct in "Vitamin D is involved in thermoregulation" Just add a couple cans of beer and you will sleep like a baby. One way to wake up was to jump in the ocean. Another negative for supplemental Vit D. Buy a cheap brand in Soy oil and really start yawning...I wonder if @Travis will stop applying it trandermally?
Yes, yes, and I certainly have. I know believe that vitamin D is generally overrated as a vitamin and also that functionally-equivalent irradiated seco-steroids can be found in essentially any sun-grown leaf (i.e. spinach, kale). A little-known fact is that even vitamin D₃ proper has been isolated from leaves, and also that near-equivalent seco-steroids would be expected to be formed upon irradiation of their respective near-equivalent phytosterols:
Of course these phytosterols must be first converted into their respective 7-dehydro forms before photolysis will occur, but just do a search to see how often these are found in leaves. Seven-dehydrositosterol has been isolated from Rauwolfia serpentina,⁽²⁾ 7-dehydrocampesterol is actually a fully-functional,⁽⁴⁾ and vitamin D₃ proper can be found even in the common tomato plant.⁽¹⁾
I believe that most correlations involving latitude and sunshine probably might have more to do with melatonin, a more powerful hormone on most accounts. Of course there is nothing wrong with getting vitamin D₃ naturally, only that experimental evidence plainly shows that it represses thermogenin.
[1] Prema, T. "Vitamin D₃ and its metabolites in the tomato plant." Phytochemistry (1996)
[2] Karmakar, T. "7-dehydrositosterol from Rauwolfia serpentina." Phytochemistry (1983)
[3] Prema, T. "Free vitamin D₃ metabolites in Cestrum diurnum leaves." Phytochemistry (1994)
[4] Ruigh, W. "7-Dehydrocampesterol, a New Provitamin D." Journal of the American Chemical Society (1942)
[5] Boland, R. "Isolation of vitamin D₃ metabolites from Solanum malacoxylon leaf extracts incubated with ruminal fluid." Planta medica (1987)
[2] Karmakar, T. "7-dehydrositosterol from Rauwolfia serpentina." Phytochemistry (1983)
[3] Prema, T. "Free vitamin D₃ metabolites in Cestrum diurnum leaves." Phytochemistry (1994)
[4] Ruigh, W. "7-Dehydrocampesterol, a New Provitamin D." Journal of the American Chemical Society (1942)
[5] Boland, R. "Isolation of vitamin D₃ metabolites from Solanum malacoxylon leaf extracts incubated with ruminal fluid." Planta medica (1987)
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