Magnesium deficiency and a general mineral imbalance that resulted in severe insomnia. I also developed a bunch of food intolerances that were getting ever worse.

I was supplementing with a lot of magnesium. Sleep returned very quickly, my need for supplementing magnesium also dropped in days.

How were you measuring magnesium need, blood tests?

After reading the "Big Vitamin D Mistake" article on HN in 2017 I also started experimenting with larger doses of Vitamin D and can attest to life-changing effects.

It has been like a permanent +5 to constitution; I am now almost through my second winter without getting sick, something inconceivable for me as a kid growing up with asthma and a whole range of puffers, and always prone to debilitating sinus infections that told hold in January and never really let up sometime around April.

That is amazing. What kind of vitamin D in at what levels did you settle on?

I initially started with 1000 IU of Vitamin D3, Costco brand, and eventually settled on 5000 as I noticed improvements in energy level as I took more.

I am at 43 latitude so I only start taking it in mid-November and start weening myself off it in late March (you never really know if/when spring will happen up here in Toronto :)

Thank you,