Vitamin B12 Methylcobalamin 5000mcg - 120 TabletsVitamin B 12, or Methylcobalamin is a Vitamin that can be obtained through food sources such as fish, meat, and poultry. Yet, you can only receive so many nutrients from diet alone. This high potency supplement delivers 5,000 mcg of B 12 per serving in convenient sublingual tablets. Methylcobalamin is the active form of vitamin B12 that is used in adults alone or in combination with other vitamins as a dietary supplement. Vitamin B12 is important for