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A 37-year-old member asked:

What are some side effects of vitamin d supplements at 2000u per day?

1 doctor answer3 doctors weighed in
Dr. Louis Krenn
Family Medicine 21 years experience
Several: Too much vitamin d can be bad for you and can cause serious problems. Side effects may include high calcium levels, elevated kidney function, nausea, vomiting, decreased appetite, weakness, and increased urination. Total intake from all sources, food and supplements should remain less than 4000u to decrease risk of adverse events, although they can happen at any dosage.
Dr. Mark Sibley
Dr. Mark Sibley commented
LASIK Surgery 46 years experience
Human & animal studies show that animals & our human ancestors got 5,000-10,000 units of Vit.D every day from 2-4 hours of outside UV sunlight exposure without clothes.There is about zero chance of that with today's parents slathering UVB 60% Protection Suntan lotion on any child who moves.Protect your skin and your children but you must get Vit.D 5,000-10,000 from somewhere. FYI -No Vit.D-No life
Jul 28, 2015
Dr. Mark Sibley
Dr. Mark Sibley commented
LASIK Surgery 46 years experience
It's been estimated that 70 percent of children & adults in the U.S. are vitamin D deficient. The cause of deficiency is a combination of not getting enough exposure to the sun & not having enough vitamin D in their diets. .Because there are only small amounts of vitamin D in food there are only two sure ways to get enough vitamin D: Exposing your bare skin to sunlight to get ultraviolet B (UVB)
Jul 28, 2015

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CA
A 38-year-old member asked:

How much vitamin d do you need per day?|

2 doctor answers4 doctors weighed in
Dr. Danny Proffitt
Family Medicine 44 years experience
1-2 grams: It appears that most publications recommend a daily amount of 1-2 grams a day. You may need more depending on age, bone mass and amount of dietary vitamin d and sunshine your get. Talk to your pcp about this. You may need more, you may not need any. My dose seem mostly accepted.
Fort Myers, FL
A 53-year-old female asked:

Are there any side effects to taking too much vitamin d?

2 doctor answers3 doctors weighed in
Dr. John Munshower
Family Medicine 31 years experience
Rare-TOXICITY: Vitamin d toxicity, also called hypervitaminosis d, is a rare but potentially serious condition that occurs when you have excessive amounts of vitamin d in your body. Vit d toxicity is a buildup of calcium in your blood (hypercalcemia), which can cause symptoms such as poor appetite, nausea and vomiting, ...Weakness, frequent urination and kidney problems also may occur.
Last updated Jul 28, 2015

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