how long for a b12 injection to work Vitamin Injections: What You Need Know how long before vitamin b12

Whats more, some people have recently suggested that unwanted weight gain be added to the list of possible side effects

Fatigue is common and can be caused by many things, including: Iron deficiency Low vitamin D Thyroid issues Poor sleep quality or sleep apnoea Stress and burnout Low mood/anxiety Dietary patterns and hydration Long-term conditions Thats why we always recommend basing B12 treatment on clinical context, and ideally blood test results, rather than guessing

This vitamin is immensely important for our brain, making DNA, and creating red blood cells

Another factor is the effect of B12 deficiency on the spinal cord and peripheral nerves