That may be, but the mechanism through which B12 is absorbed in humans is the same whether or not the animal received a supplement or not. It's the process of uptake through the diet that is the part that is concerning to humans.
More simply, the mechanisms involved in uptake by eating beef that received a B12 supplement is still very different from directly supplementing so the comparison should never be drawn.
As an aside: I would be skeptical of any chemical company's recommendations to the agricultural industry at large...
More simply, the mechanisms involved in uptake by eating beef that received a B12 supplement is still very different from directly supplementing so the comparison should never be drawn.
As an aside: I would be skeptical of any chemical company's recommendations to the agricultural industry at large...