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Hello,

I didn't noticed a lot of changes with 2000 IU but at 5000 IU the effect on mood is dramatic and quite noticeable. Being liposoluble the effect has quite a latency over several days.

It's basically the "summer vacation" feeling.

(Be carefult to take pure D3 not something mixed with calcium though: effective dosage of vit D. would bring into calcium overdosage.)

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Thank you. Could you mention a brand that I could look into and compare to what I was taking? And what are they sourced from (those that you took?).

It's winter soon so I guess I could give it another go.

I've noticed my mood improves at higher Vitamin D dosages as well. I've currently been taking Solaray brand Vitamin D3+K2, which is 5000IU D-3, 50mcg K-2, 110mg Calcium, 84mg Phosphorus.

Since this contains calcium, is it harmful to take everyday? Should I try to find a different supplement?

No comment was about supplements that are 500IU + 110mg Calcium. If you 10x this does you will have too much calcium.

Vitamin D supplements can sometimes be underdosed.

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