My vitamin D level on 8/12/15 was 18. I live in Texas and am a full-time, year round horse trainer and riding instructor. My vitamin D levels are always low…but this time was seriously pushed to take supplement of which I have started. My other bloodwork is perfect. I am 41 yr old female of mixed race ethnicity and have very light skin and I do not where sunscreen nor do I teach or ride in a covered arena. How can this be possible year after year? I also have tight facial skin and am told I look like I am in my 20's….I would have thought the sun would have sped up my aging process by now. I would like to know what would prevent my skin from converting sunshine to vitamin D. This has been my job since I was 11 years old! Thanks

Asked by  csrbarn73096300 on August 29, 2015

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  • csrbarn73096300
    Participant
     csrbarn73096300 on

    See title

    Answered by  csrbarn73096300 on

  • IAW
    Participant
     IAW on

    The other day there was a blog item titled “Mendelian randomization: Genetically low vitamin D levels linked to multiple sclerosis”. In it Dr. Cannell wrote “You may think vitamin D levels entirely depend on how much sunshine you receive or supplements you take, but that is not always the case.” “Some people inherit genes that result in chronically low vitamin D levels.” Now I am not saying this is your problem but this is the first time I have heard of this factor.
    Do you wear shorts and a no sleeve shirt while training? You would be surprised how much of your body surface you need to “expose” in order to make a decent amount of Vitamin D. Exposing just your arms and face does not produce as much. (This is probably the issue but you will have to let me know.) Then you also get to figure in the angle of the sun and time of day.
    One of our members just said that until she added Vitamin K to her supplement routine did her very low Vitamin D levels finally begin to rise. (She was taking Vitamin D but her levels would not go up.) If you are magnesium deficient then taking supplements or getting sunshine can cause symptoms but I wonder if maybe it could just stop you from producing Vitamin D. Just a thought but nothing scientific behind it.

    Answered by  IAW on

  • csrbarn73096300
    Participant
     csrbarn73096300 on

    Thank you so much for the enlightening response. I am spending about 3-7 hours per day in complete sun . Its hard to get away from the sun here in TX during the summer at least. I often wear a baseball cap, long pants and short sleeves or sleeveless shirts, and no sunscreen. My Dr said some people just do not convert sun to vit D and made a reference to possibly being something in my skin…I want to be healthy so feel a need for a more satisfying answer. Before taking vit K should I ask for a blood test first for vit K levels? Also can you please explain in detail how absorbing sunshine should create Vit D in body and where and how is it made,converted etc. Thanks

    Answered by  csrbarn73096300 on

  • IAW
    Participant
     IAW on

    I think a lot of your questions can be answered by “clicking” on “About Vitamin D” at the top of this page. This also has a section on Vitamins and minerals that go with “D”. So before you ask for a K test, you should read it. There is more than one “K”. The company Biotech makes one or two formulas that have D and other things added if you want to explore that option.
    After I typed yesterday’s message I found where Dr.Cannell said that exposing just arms and face is not enough and that a large area such as your “back” is better for making large amounts. Again you are back to “surface” area exposed.
    The only way that you would really know if it is you or simply surface area would be to expose a larger area. For example let’s say a 1/2 hour everyday at lunch or over the weekend, or when you have time off, and at least an hour with lot’s of skin exposure.
    Anymore questions, just ask!

    Answered by  IAW on

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