does vitamin b12 injection help with fatigue Are Shots Right for You? I Feel Tired All the

JoAnn Manson, chief of the division of preventive medicine at Brigham and Womens Hospital in Boston and professor of medicine at Harvard Medical School

Over time, this helps: Repair damaged brain cells Strengthen neural pathways Improve mood, motivation, and thinking Think of BDNF like the Miracle-Gro for your brain

B12 injections help restore your vitamin levels to prevent water loss on your skin and enhance your protection against irritants

When given by intramuscular injection, the dose bypasses the digestive tract and is absorbed reliably, which matters because dietary B12 absorption depends on stomach acid and a protein called intrinsic factor, both of which decline with age, medication and certain gut conditions

B12 oral supplements are also readily available but these take longer to work and there is no guarantee that the body will absorb them effectively due to the digestion process