Vitamin D and Sleep

[ManBearPig]

So...my sister takes Vit D and says it helps her not be sleepy/as tired during the day. Any opinions on this?

 

[Mr. Pedantic]

Doing a quick literature search, I can't find anything that specifically relates vitamin D and sleep quality/quantity. However, vitamin D is a vitamin that promotes physical wellbeing in a number of physical systems, and a deficiency of vitamin D could very well impact sleep quality negatively. However, there is also no evidence that taking Vitamin D supplementation provides effects on top of that provided by an already adequate vitamin D intake.

So, having said all that, it could be that your sister was vitamin D deficient and the supplement is taking her up to normal or augmented levels. Or it could just be placebo.

 

[SociallyChallenged]

Vitamin D is important in metabolism. If she wasn't getting enough, it was likely that it was effecting her pretty significantly. How many IUs is she taking?

 

[TridenT]

Doing a quick literature search, I can't find anything that specifically relates vitamin D and sleep quality/quantity. However, vitamin D is a vitamin that promotes physical wellbeing in a number of physical systems, and a deficiency of vitamin D could very well impact sleep quality negatively. However, there is also no evidence that taking Vitamin D supplementation provides effects on top of that provided by an already adequate vitamin D intake.

So, having said all that, it could be that your sister was vitamin D deficient and the supplement is taking her up to normal or augmented levels. Or it could just be placebo.

Bolded for emphasis... Let's talk about those melatonin pills. :hmm: People swear by them but I can down fifty of them and not even get remotely phased. Of course, I don't because they usually include some other vitamin thing in there... and I don't wanna OD on some shit if that's possible.