General physical symptoms of vitamin B12 deficiency can include: Feeling very tired or weak. Experiencing nausea, vomiting or diarrhea. Not feeling as hungry as usual. Weight loss. Having a sore mouth or tongue. Having yellowish skin. Neurological symptoms of vitamin B12 deficiency can include: Numbness or tingling in your hands and feet
• Symptoms include muscle pain, bone pain, tingly sensation in hands or feet, muscle weakness • Treatment includes lifestyle changes, vitamin D supplements, medication • Involves endocrinology, pediatric endocrinology & diabetes Overview Related Specialists Thomas Carpenter Silvio Inzucchi Clemens Bergwitz MD More Related Specialists Print Overview
bone loss depression type 2 diabetes heart disease multiple sclerosis An estimated 1 billion people around the globe have low blood levels of the vitamin ( 4 ). One research review found that
1. Fatigue, bone pain, muscle weakness Feeling tired? Experiencing bone pain? Having muscle weakness? It could be a sign that you're lacking vitamin D.  This vitamin is important for bone health along with the health of your nervous, musculoskeletal and immune systems. Older adults are at higher risk for being D deficient.
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symptoms of vitamin deficiency chart