Herbs of Gold Sublingual B12 1000 may assist in the management of a dietary vitamin B12 deficiencies, which may be present as fatigue. Vegetarians may benefit from this blood and nerve tonic, due to the increased need for vitamin B12, which is essential for maintaining a healthy nervous system and protecting nerve function. B12 is also essential for a healthy cardiovascular system, aiding healthy homocysteine levels. Homocysteine is a biological marker associated with an increased risk for a variety of diseases. Vitamin B12 is also vital for normal cell function, playing an important role in cell growth and replication. Vitamin B12 may also assist to maintain healthy blood, protect health of capillaries, protect the health of the immune system, and metabolise carbohydrates, fats and proteins.