If you discover that muscle weakness is keeping you from being able to perform ordinary tasks, you may have a vitamin B12 deficiency. When the body is unable to keep up with normal red blood cell production, muscles aren’t able to receive the oxygen they need. This leads to weakness and difficulty performing normal daily activities.
9. Gastrointestinal Issues
Your gastrointestinal tract can be another victim of vitamin B12 deficiency. Problems with digestion such as nausea, diarrhea, decreased appetite, and bloating can all arise from a lack of vitamin B12. This in turn can lead to weight loss. Visit your doctor if you suspect vitamin B12 deficiency may be the cause of your digestive woes.
8. Blurry Vision
Vitamin B12 is an important factor in the formation of nerves. If you are experiencing unexplained blurred vision or double vision, you may be suffering damage to your optic nerve. This nerve transmits signals to your brain from your retina. If this nerve becomes weakened, you can suffer vision problems. Vitamin B12 injections can improve vision in these cases.