I switched from 2000 to 5000iu about 8 years ago. My levels went up similar to y... | Hacker News

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icedchai 33 days ago | parent | context | favorite | on: The worthlessness of Vitamin D is mildly exaggerat...

I switched from 2000 to 5000iu about 8 years ago. My levels went up similar to yours, but I don't feel much different!

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