Signs and Symptoms of Vitamin B12 Deficiency Vitamin B12 deficiency can lead to various health concerns, including: Fatigue and low energy levels Pale or jaundiced skin Breathlessness or dizziness Pins and needles or numbness Muscle weakness Mood changes, including depression For more information about Vitamin B12 deficiency symptoms, visit the NHS website
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Most side effects are dose-dependent, meaning lower doses produce fewer issues
News in brief BioWorld Asia BioWorld Asia briefs for July 21, 2026 To viral or not to viral: In vivo CAR T debates delivery tech BioWorld The field of cell and gene therapy is moving toward a new phase of scalability and clinical durability, with in vivo chimeric antigen receptor (CAR) T-cell
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They bypass the blood-brain barrier