Intrinsic factor decreases with the age?

Intrinsic factor is a protein produced by the stomach that is essential for the absorption of vitamin B12. As people age, the production of intrinsic factor can decrease, leading to a higher risk of vitamin B12 deficiency. This deficiency can result in anemia and neurological issues, as vitamin B12 is crucial for red blood cell formation and proper nerve function. Therefore, older adults may need to monitor their vitamin B12 levels more closely.