Vitamin B12 deficiency can manifest in various ways, impacting both physical and mental well-being. Recognizing the signs of extremely low Vitamin B12 levels is crucial for timely intervention. Common indicators include persistent fatigue, weakness, and shortness of breath. Neurological symptoms such as numbness, tingling, and difficulty concentrating are also red flags. If you notice pale or jaundiced skin, it could be another indication of B12 deficiency. Regular health check-ups and including B12-rich foods like meat, fish, and dairy in your diet are essential preventive measures. Being vigilant about these signs ensures early detection and appropriate measures to address Vitamin B12 deficiency.