When it comes to vitamin B12, red meat tops the charts. Australian Wagyu Association How Long Does a Vitamin B12 Injection Last? Skin Benefits & More Choosing the Right Vitamin B12 Supplement: What You Need to Know WhyNotNatural The Four Types of Vitamin B12: Which One Is Right for You? People love to bring up B12 like it's a reason to eat meat. But here's the irony Even meat eaters can be deficient in B12. That's because B12 comes from bacteria in I often get asked if B12 is just a concern for vegans. The answer? Not at all. , Even if you eat meat or dairy, theres no guarantee youre absorbing enough, especially as you age or if youre on