Taking vitamin B12 separately from other vitamins is better to avoid encountering antagonists. And it would help if you take it, as most people have a deficiency. It is prevalent among vegetarians and raw foodists. All doctors know this and often prescribe some Milgammas or B12 separately in injections. And people really feel better. But we’re for a natural approach without injections. All this can be taken as dietary supplements with food. But if a person takes a vitamin complex, then it’s usually all mixed together, and B12 is poorly absorbed, so people are surprised that they don’t see results. Therefore, it’s better to take B12 separately.