Summary: High vitamin B12 levels rarely cause direct symptoms
Vitamin B12 injections are suitable for individuals experiencing low energy, fatigue, or nutrient deficiencies
For B12 deficiency, a typical injection dose is 1,000 mcg once a week for 4 to 8 weeks and then 1,000 mcg once a month
Support Healthy Hair, Skin, and Nails Vitamin B12s role in cell production extends to hair, skin, and nail health
[1] Other manifestations of B12 deficiency include glossitis (sore, red tongue), mouth ulcers, visual disturbances, and in severe cases, psychiatric symptoms such as depression, psychosis, or dementia-like presentations