Hacker News Reader

Comment by leetrout | Hacker News Reader

This is interesting to me because I was put on prescription 50000IU D2 and it gave me heart palpitations.

I was put on 5000IU D2 and I got kidney stones, twice. The doctor wouldn't believe that the D2 was the cause, but I stopped taking it and the stones have not recurred.

I would like to bring my D levels up, but not at the expense of kidney stones.

I was put on it because I have stones and my parathyroid hormone level is 2.5x normals. The understanding is that low vitamin D causes higher PTH which can influence stones even though my blood calcium is normal. We didn't get to a root cause on the palpitations but my vitamin D has dropped back to 9 so I am going to have to supplement.

Why D2?

50K IU in a single dose is probably a bad idea. You’d also want D3 generally.

It's not, in many studies there was no observed difference between higher dose weekly or lower one daily when it summed up to the same amount. Sometimes even higher monthly doses are used.

It's just easier to overdose by mistake this way.

The problem isn’t about reaching target levels.

High singular dose of Vitamin D taken at once could have some negative effects. Some formulations are administered with Vitamin K to try to offset this risk but it’s better to just spread the dosages out rather than expose your body to unnaturally high spikes of Vitamin D.

is that daily?

I'm taking same dose, 50000UI but bi-weekly and it's D3, not D2.

Reply on news.ycombinator.com