Vitamin B12 is a crucial nutrient that plays a fundamental role in maintaining peak health. It is integral to the creation of red blood cells, DNA synthesis, and the effective operation of the ...

GI symptoms, including nausea and diarrhea. Having low levels of B12 can cause fewer red blood cells to reach your digestive ...

The skin loses some of that ability with age, however, leaving older adults at particular risk of vitamin D deficiency—a ...