Vitamin B12, a nutrient found mostly in animal products, is vital for healthy nerves and blood cells. A deficiency can go unnoticed because it can cause symptoms that are shared with other conditions. Vitamin B12 deficiency — which can go unnoticed but eventually cause a range of symptoms including numb ...
See Details: A vitamin B12 deficiency can go unnoticed and cause symptoms like numb limbs and a yellow tinge to the skin and eyes. A dietitian explains how to get enough.