Vitamin B12 is an important nutrient for the body, found in foods such as salt, milk, fish, eggs, meat, and potatoes. It is important for the prevention of bladder cancer, healthy reproduction, and development of normal cell types.

Some people cannot handle the injection immediately, as it can cause discomfort for them. Pain or discomfort can be relieved by intravenous medication and often helps. However, this procedure must be carried out according to the doctor's advice.

Wishing you the best and success in the engagement.