India, Jan. 31 -- Vitamin B12 is an essential nutrient that plays a key role in producing healthy red blood cells, supporting nerve health, and boosting brain function, memory, focus, and mood balance. It also helps convert the food you eat into energy and prevents anaemia, a condition that can leave you feeling tired and weak.

Since the human body cannot produce vitamin B12 on its own, it must be obtained from food or vitamin supplements. But when should you start taking these supplements or enrich your diet with foods that have vitamin B12? How can you know that you are vitamin B12 deficient?

To better understand vitamin B12 and its deficiency, HT Lifestyle spoke with Dr Mahesh Neelakanthanavar, consultant in general medicine at HCG S...