Took 50,000IU Vitamin D supplement yesterday evening and feel the effects already

I got lab work done about 2.5 weeks ago and was told I had low iron and vitamin D. I finally took my once a week dose of vitamin D yesterday and I woke up with a clear head and feeling grateful and positive. Like I woke up so happy it’s freeing lol. I’ve been in a bit of a rut for weeks.

I don’t know if it could work that fast but I realized it’s a large dose.

I instantly came onto Reddit and joined r/supplements, r/nutrition, and r/microbiome so I can learn more. I had no idea that vitamins and nutrients played that much into your mood and mental health. Just wanted to share my experiences.

Update: just wanted to reiterate I did get my LAB DRAWN by medical professionals and went to a provider who PRESCRIBED the vitamin. I have no recommendations on what dose of vitamin D you should take. Also it’s a once a week dose for only four weeks, not for an extended period. Thank you!