Statements Data availability statement The raw data supporting the conclusions of this manuscript will be made available by the authors, without undue reservation, to any qualified researcher
People with low B12 may experience: Persistent fatigue or low energy Weakness Brain fog, concentration issues, or memory changes Low mood or irritability Pins and needles, numbness, or nerve-type sensations Mouth ulcers or a sore tongue Paleness or shortness of breath (if anaemia is present) Some symptoms can become more serious if deficiency is prolonged, particularly neurological symptoms
Other common symptoms include difficulty concentrating, memory problems, lightheadedness, or even shortness of breath with mild activity
Clear Development Challenges and Optimization Directions Currently, the preparation still has obvious limitations