Vitamin D absorption for different skin types

Human Anatomy, Physiology, and Medicine. Anything human!

Moderators: Leonid, amiradm, BioTeam

Post Reply
Piggis
Garter
Garter
Posts: 3
Joined: Tue Jul 08, 2014 10:04 pm

Vitamin D absorption for different skin types

Post by Piggis » Tue Jul 08, 2014 10:29 pm

Earlier i was reading an article and which mentioned how people with lighter skin synthesise vitamin D from the sun more easily than people with darker skin tones. I tried to look into this but i couldn't find an answer so i thought somewhere like here would be a good place to start. So my question is if people with lighter skin can synthesise vitamin D more easily, does this mean that people with darker skin are more susceptible to depression from vitamin D deficiency, or do people with darker skin naturally have a higher amount in their system to begin with?

Darby
Viper
Viper
Posts: 1278
Joined: Thu Mar 02, 2006 5:29 pm
Location: New York, USA

Re: Vitamin D absorption for different skin types

Post by Darby » Tue Jul 15, 2014 7:39 pm

This seems to be an area that is just beginning to draw research interest.

Darker skin evolved in high light-exposure populations to protect deeper skin layers from UV damage, but tones lightened in pops with lower exposure, to allow enough UV to reach the D-generating skin tissues. Dark-skinned people in lower-light areas almost certainly need D supplements (or extra UV exposure, which has some downside) of some sort. They don't make D another way.

Piggis
Garter
Garter
Posts: 3
Joined: Tue Jul 08, 2014 10:04 pm

Re: Vitamin D absorption for different skin types

Post by Piggis » Wed Nov 12, 2014 3:24 pm

Thank you for your reply :)

AllenHoward
Garter
Garter
Posts: 1
Joined: Thu Apr 02, 2015 9:52 am

Post by AllenHoward » Thu Apr 02, 2015 9:56 am

The amount of vitamin D you get from exposing your bare skin to the sun depends on:

The time of day – your skin produces more vitamin D if you expose it during the middle of the day.
Where you live – the closer to the equator you live, the easier it is for you to produce vitamin D from sunlight all year round.
The color of your skin – pale skins make vitamin D more quickly than darker skins.
The amount of skin you expose – the more skin your expose the more vitamin D your body will produce.

Piggis
Garter
Garter
Posts: 3
Joined: Tue Jul 08, 2014 10:04 pm

Re: Vitamin D absorption for different skin types

Post by Piggis » Fri Apr 03, 2015 11:08 pm

Will this mean that people with darker skin in a country with less sunlight will suffer from depression more easily?

Darby
Viper
Viper
Posts: 1278
Joined: Thu Mar 02, 2006 5:29 pm
Location: New York, USA

Re: Vitamin D absorption for different skin types

Post by Darby » Thu Apr 09, 2015 8:40 pm

I'm not sure that a clear link between Vitamin D and depression is established - I haven't seen much attempt to control for issues like seasonal affective disorders and the like.

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest