In the meat and dairy industry, animals are often supplemented with Vitamin B12 due to modern farming practices that limit their natural intake. So people who eat animals are simply taking a I often get asked if B12 is just a concern for vegans. The answer? Not at all. Even if you eat meat or dairy, there's no guarantee you're absorbing enough, especially as Who Should Consider Lipo B12 Injections? Eligibility and Guidelines The Advantages of B12 Injections Versus Oral Supplements: Shawn Veiseh, M.D.: Family Medicine