why vitamin b12 injections versus oral supplemnets gastric surgery vs Supplements: Which Is Better? Vitamin B12: What It Is,

Some people also notice an improvement in their overall sense of well-being and a reduction in symptoms associated with deficiency, such as tingling or numbness in the extremities

Additionally, genetic predispositions to higher melanin levels in the under-eye area can cause pigmentation, making dark circles more noticeable even in younger individuals

These include: Lack of energy Difficulty concentrating Tingling or numbness in the hands or feet Rapid heart rate Loss of appetite and weight loss Nausea and diarrhea Glossitis (tender, swollen tongue) Vitamin B12 deficiency can be detected through blood testing

Liver effects (fatigue, dark urine, jaundice)