What's a muggle? Honestly, if you live in CA like most here just sun bathe for 15-20 mins daily on exposed skin, your body actually has a 'built-in' start-stop

What's a muggle? Honestly, if you live in CA like most here just sun bathe for 15-20 mins daily on exposed skin, your body actually has a 'built-in' start-stop system that will actually stop producing vitamin D innately due to a feedback loop. You need to stop before your skin becomes irritated and begins to burn, obviously, to avoid damage. 17 mins for me is the sweet spot for ideal blood serum levels. > what should we be taking and how much? If taken as a dietary supplement that is way beyond me, as I'm not a physician and its irresponsible to give medical advice as its specifically related to you and your health. But someone even mentioned the 10000 IU doses that can be administered in severe cases with little to no harm and that's worth noting in terms of toxicity risk. Personally, I moved to CO from the coastal part of CA partly because of the elevation difference and intensity of Sun in the Fall and Winter months to mitigate my Vitamin D level decreasing and how it affects my health; so my personal optimized blood serum wouldn't be compatible to your own, so even that wouldn't work. > I just want to pip install vitamin-d and be on my way. Biohacker hat on: Get some Vitmain D pills and start with taking 1000 IU (as a baseline) and increase the dosage incrementally on a weekly basis while documenting your mood, and overall health and decide for yourself. You get several types of endorphins from it, so when I started to find my effective doses I noticed it alleviated my irritability and frequent headaches.