Q:

How much vitamin D-3 is too much to consume?

A:

Quick Answer

Taking daily doses of 50,000 International Units of vitamin D per day for months can cause toxicity, reports Mayo Clinic. The recommended dietary allowance for adults is 600 International Units of vitamin D per day. Vitamin D-2 and vitamin D-3 have the same effect on the body, states SFGate.

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Full Answer

Vitamin D toxicity is almost always the result of taking excessive amounts of vitamin D supplements, as few foods contain high amounts of vitamin D, and the body regulates vitamin D produced through exposure to the sun, explains Mayo Clinic. People who have kidney or liver conditions are at an increased risk for vitamin D toxicity. Symptoms of vitamin D toxicity include vomiting, nausea, decreased appetite, weakness and frequent urination.

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