MENU
ConsumerLab.com Answers

Question:
I spend a lot of time in the sun, especially in the summer. Does this mean my vitamin D levels could get too high?

Answer:
No. Even though spending short periods of time in the sun can usually provide adequate amounts of vitamin D, spending longer periods of time in the sun will not increase vitamin D levels to toxic levels. This is because excessive exposure to sunlight degrades previtamin D3 (which is normally converted by sunlight into vitamin D3 in the skin) and degrades vitamin D3 itself.  

However, as discussed in the CL Answer about getting too much vitamin D, it is possible to get too much vitamin D from supplements. For more details about sun exposure and vitamin D, see the Vitamin D Supplements Review >>

Also see these related CL Answers:



As vitamin D is a fat-soluble vitamin, why is it necessary to take it every day? >>

Do any supplements help prevent sunburn or skin damage from sun exposure? >>

A blood test showed my vitamin D level is low. How do I know how much vitamin D to take?  >>

I read that aging lowers the body's capacity to produce vitamin D. Even regular sun exposure will not suffice and one may have to take a vitamin D3 supplement during old age to meet our body's regular requirements. Please comment on this. >>



See other recent and popular questions >>
Comments
Add Comment

micheline6881   July 22, 2015
you should probably lower your vit D supplement during Summer as it will get higher from the sun.

This CL Answer initially posted on 7/21/2015. Last updated 8/3/2017.

Add Comment...

Share your thoughts and comments about this topic in the space below. Please abide by the following rules:
  • If you make a statement of fact, such as whether a type of treatment does or does not work, state your basis -- such as personal experience or a published study.
  • If you make a positive or negative comment about a product, note whether or not you have a financial interest in the product or in a competing product.
  • Please be respectful in your tone.
  • Please do not submit any type of HTML markup or scripting as it will not be accepted.
Comment:

Add Comment...

Share your thoughts and comments about this topic in the space below. Please abide by the following rules:
  • If you make a statement of fact, such as whether a type of treatment does or does not work, state your basis -- such as personal experience or a published study.
  • If you make a positive or negative comment about a product, note whether or not you have a financial interest in the product or in a competing product.
  • Please be respectful in your tone.
  • Please do not submit any type of HTML markup or scripting as it will not be accepted.
Comment:

Edit Comment...

You can modify your comment below. Please be aware the comment will have to approve the changes before they will be shown:
Comment: