Feeling tired and low on energy? You might need a B12 boost! Vitamin B12 helps with energy production, brain function, and red blood cell formation. A deficiency can cause fatigue, weakness, and Still feeling tired even after good sleep? It might be more than just stress it could be Vitamin B12 deficiency. In Part 2, Dr. Pydi Satish, Consultant General Physician, explains the signs, causes, Vitamin B 12 intramuscular injections are also used therapeutically to help restore energy and combat various symptoms related to such deficiencies. Vitamin B 12 is essential to the development of healthy blood cells, nerve Vitamin B12 Injection Dosage Guide: 7 Essential Dosage Facts for Adults Liv Hospital