https://blogs.mercola.com:443/sites/vitalvotes/archive/2025/11/08/the-hidden-vitamin-deficiency-that-could-be-affecting-your-mood.aspxLow vitamin D doesn’t just weaken bones — it may also affect how you feel. A large review of 66 studies from 31 countries found that adults with low vitamin D were more likely to have depression, especially when blood levels dropped belowenCommunityServer 2008.5 SP1 (Debug Build: 31106.3070)