Vital to the production of red blood cells, vitamin B12 is not produced by the human body, meaning it must be obtained from vitamin supplements or from the diet. Meats, seafood and animal products like cheese and eggs are among the most prevalent vitamin B12 foods, but this presents a problem for vegans and vegetarians, as they may not derive this necessary vitamin from the foods they consume. There are a range of symptoms for those who are vitamin B12 deficient that include anemia, tingling in the extremities, depression and fatigue. Over time, those deficient in vitamin B12 may also experience irreversible nerve damage. Dr. Brownstein's informative work, "Vitamin B-12 for Health," seeks to:
Dr. Brownstein has devoted his medical career to improving the health of his patients through holistic means. He has lectured on the benefits of nutrition and received an Excellence Award for Distinguished Clinician for his dedication in treating chronic diseases. He is a graduate of the Wayne State University School of Medicine and heads the Center for Holistic Medicine in West Bloomfield, Michigan.