About Forum Questions for the Vitamin D Scientists Not going up as expected

This topic contains 1 reply, has 2 voices, and was last updated by  Jen 4 years, 1 month ago.

Viewing 2 posts - 1 through 2 (of 2 total)
  • Author
  • #176


    For a vitamin D scientist – is there any reason my vitamin D blood level would not be going up as expected? I’ve been taking 4000 IU per day, but my level is hovering in the mid 30s. I’d really like for it to get up into the 40-60 range. Please help! Much appreciated.



    Hi greenmama,

    There are many factors that go in to a person’s D level at a given time – supplements and sun exposure are major factors, for sure.

    If there has been any recent illness or injury, D levels will be down a bit.

    Vitamin A, not in the form of beta-carotene, can compete with vitamin D and effectively cause a reduction in D levels if the A intake is over 5000 IU/day.

    Foods and supplements that can increase D levels (for some people):

    – D-fortified foods, such as milk and other dairy products, some orange juice, some cereals
    – Fermented foods such as kimchi, yogurt, kefir, cottage cheese, sauerkraut
    – Eggs, fatty fish, other meats
    – Probiotics
    – Magnesium, vitamin K, and a few other ‘cofactors’
    – Fish oil

    It may be beneficial to also try a different brand of vitamin D to see if that helps, or making sure you are taking your supplement with a fatty meal.

Viewing 2 posts - 1 through 2 (of 2 total)

You must be logged in to reply to this topic.