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Vitamin D & the Gut

  • Jennifer

    My son (12) has had his vitamin D and calcium levels checked and this past month. Despite calcium and vitamin D supplements via tablet and ripple milk and fortified orange juice, his vitamin D was registering low but calcium was 10.5. He has a dairy allergy so we supplement in the above ways.
    Could there be something wrong with his parathyroid?
    I have read that if so, supplementing with bit D, could pull calcium from his bones.

    • Giuditta Del Vecchio

      What’s his vitamin D serum, and how many IU are you supplementing? Maybe it’s not enough for his body weight and needs to be on a higher dose for 2-3 months. Dose needs to be tailored according to body weight and serum level. Additionally low vitamin D despite supplementation can be a sign of Magnesium deficiency. It’s always better to take vitamin d with K2 and Magnesium.

      • The sun makes many vitamin D keeped in the liver.

  • Maria Utrecht

    Should it not be advised that magnesium is to be taken together with Vitamin D?

  • Joseph Kish

    Hi Dr. Perlmutter,

    What is your recommended daily amount of D?

    Thanks for taking your time to inform all of us!

  • AKcharle

    The amount of vitamin D depends on where you live. I live in Alaska so I take 10,000 IU daily of D3 (cholecalciferol). When my D levels were last checked I was so deficient my dr. put me on 20,000 IU daily. We basically get no D from the sun even in the summer due to the angle. Now if you live where you can get some decent sun you will take much less. Look for these signs if you end up taking too much.
    The main consequence of vitamin D toxicity is a buildup of calcium in your blood (hypercalcemia), which can
    cause poor appetite, nausea and vomiting. Weakness, frequent urination
    and kidney problems also may occur. Treatment includes the stopping of excessive vitamin D intake. https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/expert-answers/vitamin-d-toxicity/faq-20058108

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