While approximately 40% of the population in just the United States alone suffer from some form of B12 deficiency, another 40% or more Americans actually have issues absorbing Vitamin B12. This is because B12 absorption is especially reliant on our digestive health. While other vitamins are easily absorbed, due to our poor diets in this country (as well as other health issues), our digestive health is not always very secure, thus B12 cannot be easily absorbed!
The human stomach either is supposed to produce or does produce a protein that helps us to absorb Vitamin B12. That particular protein is called intrinsic factor. Once again, if there is not enough of this intrinsic factor produced in our digestive systems, then B12 cannot be absorbed well enough.
Surgery, gastritis, consuming MSG, a food preservative, mercury exposure, and any intestinal ailments such as a leaky gut, gluten sensitivity, pernicious anemia and weak stomach acid are just a few of the reasons a senior (or any other individual) may not produce enough intrinsic factor thus not allowing them to get enough B12 absorbed.
Even though intrinsic factor is an issue, regardless, our bodies still have a hard time absorbing B12 anyway. That is another reason that B12 deficiency is such a health risk! Please relate this data to your clients so that they realize just how deep your concern is about their health due to their diets; showing them that With Age Comes Respect.