fe.settings:getUserBoardSettings - non array given[4chon] - Endchan Magrathea
> Vitamin D may improve your energy levels. Here’s how much you need each day

Recommended daily intake for adults up to age 70 is 600 IU and 800 IU for adults over 70

https://finance.yahoo.com/news/vitamin-d-may-improve-energy-091100259.html