In the short term, inflammation is beneficial because it helps protect damaged tissues and initiate healing
Common signs of low B12 include neurological symptoms such as pins and needles in the hands and feet, balance difficulties, and memory problems, alongside haematological features like persistent fatigue, breathlessness, and a sore tongue
At clinical doses under supervision, the most common side effects are mild nausea in the first week (typically resolves by day 7 to 10), injection site reactions (redness, minor swelling, localized soreness lasting 24 hours), and occasional transient fatigue or mild headache in the first few days
Vitamin B12 is found naturally in various food sources, including animal products like meat, fish, poultry, eggs, milk, and milk products ( Its also added to many fortified foods, such as breakfast cereals and plant-based milk like almond, soy, or hemp milk ( Vitamin B12 supplements are also available in several forms, including tablets, capsules, liquids, and lozenges
