The B-group vitamins (there are eight essentials) have widespread functions in the body. Vitamin B12, one of the most commonly occurring deficiencies due to dietary, lifestyle, and age factors, has a significant role in the production of red blood cells and DNA. Without it, our bodies can become nutritionally depleted. Shop the best natural health products including B12 sources at Sage Wellbeing. Learn more about Vitamin B12 and your health HERE.