Throughout the years, Dr. Martin has had the opportunity to counsel other doctors on nutrition. Unfortunately, family physicians receive little to no training about nutrition and that includes vitamin B12. B12 is essential for making red blood cells, nerve function, and brain health, but so many of us are deficient. Poor diet, medication use, and digestive issues are all factors, but there are more that you probably didn’t know of. Join Dr. Martin as he shares the unexpected symptoms of low vitamin B12.