It was over 5 years before I had the kidney stones.
I still take D3 but have taken the advice of the urologist and the other medical experts, by also taking Vit K2 (MK7) and taking the D3 with food.
Apparently Vit K2 (MK7) helps the body to absorb & use the D3 in the correct way.
I can clearly recall the urologist saying he wasn’t surprised at all that I had developed kidney stones considering the dosage and length of time I had been taking the D3.
For many years I was taking 5000iu of D3 by itself and without food, my D3 levels were hardly moving up as it wasnt being absorbed correctly, but when I started taking it with food my levels started to rise almost immediately, thats when I also started on the Vit K2, after advice from the urologist and haematologist.
What annoyed me was that my neuro advised me to start on D3 @ 5000iu the same day he diagnosed the MS, yet years later when I developed the kidney stones and I mentioned to him what the Urologist and others had said he immediately said that "supplements were not really his field and he only recommends D3 as there might be a link between low levels of D3 levels and MS, but theres no real proof ".
Thats fine, but surely if your advising someone to take a supplement in high doses you should also advise them to seek further advise from someone who has knowledge in the field of diet & supplements !
My GP has questioned the dosage many times over the years, asking if the MS clinic are still wanting me to take this dose as he has felt for ages that its a high dose to keep taking year in year out.
As with most things medical, if a consultant advises you to take a certain medication or supplement, you don’t really question it at the time.