https://blogs.mercola.com:443/sites/vitalvotes/archive/2026/02/27/what-a-vitamin-b12-deficiency-can-do-to-your-body.aspxVitamin B12 deficiency is more common — and more dangerous — than many realize. Because it develops gradually, symptoms are often dismissed as “normal aging.” Numbness or tingling in the hands and feet, trouble walking, fatigueenCommunityServer 2008.5 SP1 (Debug Build: 31106.3070)