[kerkeslager]

> I have found that taking Magnesium is like turning a switch on in my head and I'm suddenly happy again. I don't get upset or angry in the same way, I'm more patient and my thoughts are not obsessive.

> Magnesium is best taken with calcium and vitamin D as both are used in the uptake of magnesium.

There are a bunch of studies which have found correlations between vitamin D and depression and (stronger) correlations between vitamin D and seasonal affective disorder.

If your supplementation is working for you, there's no reason to change it, but there's a fairly obvious alternate explanation for the phenomena in the fact that you're also supplementing Vitamin D.