4 ms·

If you take a lot of vitamin D, you have to make sure that you are getting enough magnesium. Also, vitamin D really shouldn't be taken any other time than befo

If you take a lot of vitamin D, you have to make sure that you are getting enough magnesium. Also, vitamin D really shouldn't be taken any other time than before noon. (Not sharing this for you in particular, just for anyone reading who decides to try vitamin D supplementation for the first time. Doctors aren't always sharing she vital info about how to take vitamin D)

tudelo 7y ago
> Also, vitamin D really shouldn't be taken any other time than before noon. I'm sure I could go find sources, but it might be helpful if you link them here. It's hard to believe comments that give medical information and disparage doctors.
- mattmanser 7y ago
  I'm actually just completing a high-strength vitamin D tablet course and the advice for taking it in the instructions is to take it with your evening meal, so sounds like a load of hogwash. Here, for example, are the instructions that came with my tablets: https://www.sunvitd3.co.uk/site/wp-content/uploads/2019/01/SunVit-combi-PIL_v24.pdf https://www.sunvitd3.co.uk/site/wp-content/uploads/2019/01/S... Note the: "Please Note: SunVit-D3® tablets should be swallowed whole with water and taken in the evening with a main meal."
  - belltaco 7y ago
    The reason for that recommendation is that Vitamin D absorbs better in a meal with fat, and dinner is the biggest meal for most people. See my other comment in reply to parent. There might be lower quality sleep because of the timing. https://www.gwern.net/zeo/Vitamin-D https://www.gwern.net/zeo/Vitamin-D
- belltaco 7y ago
  The theory is that vitamin D intake helps set the circadian clock because it has been correlated with exposure to sunlight for hundreds of millenia. I think Gwern did a single blind experiment on himself and found some correlation to lower sleep quality if it's taken at night.
- XzetaU8 7y ago
  https://www.gwern.net/zeo/Vitamin-D https://www.gwern.net/zeo/Vitamin-D
feanaro 7y ago
Why magnesium? Any references?
vthriller 7y ago
> vitamin D really shouldn't be taken any other time than before noon Does this advice apply to people that work night shifts?
- OJFord 7y ago
  I believe the actual science (rather than than that it's somehow sensitive to the time of day) is that it requires sunlight (UV) exposure to absorb, rather than just be excreted. So if you work a nightshift, hopefully there's some opportunity still to get some sunlight either side, and you should take it before that. (IANA healthcare professional)

tudelo 7y ago

> Also, vitamin D really shouldn't be taken any other time than before noon. I'm sure I could go find sources, but it might be helpful if you link them here. It's hard to believe comments that give medical information and disparage doctors.

mattmanser 7y ago
I'm actually just completing a high-strength vitamin D tablet course and the advice for taking it in the instructions is to take it with your evening meal, so sounds like a load of hogwash. Here, for example, are the instructions that came with my tablets: https://www.sunvitd3.co.uk/site/wp-content/uploads/2019/01/SunVit-combi-PIL_v24.pdf https://www.sunvitd3.co.uk/site/wp-content/uploads/2019/01/S... Note the: "Please Note: SunVit-D3® tablets should be swallowed whole with water and taken in the evening with a main meal."
- belltaco 7y ago
  The reason for that recommendation is that Vitamin D absorbs better in a meal with fat, and dinner is the biggest meal for most people. See my other comment in reply to parent. There might be lower quality sleep because of the timing. https://www.gwern.net/zeo/Vitamin-D https://www.gwern.net/zeo/Vitamin-D
belltaco 7y ago
The theory is that vitamin D intake helps set the circadian clock because it has been correlated with exposure to sunlight for hundreds of millenia. I think Gwern did a single blind experiment on himself and found some correlation to lower sleep quality if it's taken at night.
XzetaU8 7y ago
https://www.gwern.net/zeo/Vitamin-D https://www.gwern.net/zeo/Vitamin-D

feanaro 7y ago

Why magnesium? Any references?

vthriller 7y ago

> vitamin D really shouldn't be taken any other time than before noon Does this advice apply to people that work night shifts?

OJFord 7y ago
I believe the actual science (rather than than that it's somehow sensitive to the time of day) is that it requires sunlight (UV) exposure to absorb, rather than just be excreted. So if you work a nightshift, hopefully there's some opportunity still to get some sunlight either side, and you should take it before that. (IANA healthcare professional)