b12 supplement vs injections The Advantages of Versus Oral Supplements: Shawn Veiseh, M.D.: Family Medicine Do You Need a Prescription

Some people experience digestive upset from high-dose B12 supplements

Vitamin B12 is a powerhouse nutrient crucial for several bodily functions, including energy metabolism, nerve function, and red blood cell formation

Vitamin B12 shots are ideal for individuals who have dietary restrictions, such as vegans or vegetarians, experience digestive issues that affect nutrient absorption, or suffer from conditions like pernicious anemia

As an essential vitamin, B12 is required for the body to work properly

Goodman says, though some people require them for the long term. Your healthcare provider will make recommendations based on your B12 level, age, diet and overall health

For people with an absorption problem, injections are usually more effective than tablets