India, Jan. 5 -- A vitamin B12 supplement often becomes essential when persistent fatigue, weakness, memory lapses, or tingling in the hands and feet begin to affect daily life. These symptoms are usually overlooked because they frequently indicate low levels of vitamin B12. This vitamin is vital for red blood cell production, DNA synthesis, and maintaining myelin, the protective covering around nerves that supports proper nerve signalling.

Dr Sanchayan Roy, Senior Consultant in Internal Medicine at Apollo Spectra Hospital, New Delhi, tells HealthShots that factors such as poor dietary intake, digestive disorders, and long-term medication use can impair B12 absorption over time. In such cases, selecting the right B12 supplement helps res...