Pale or yellow skin

Vitamin B12 deficiency might show up as pale skin or skin with a little yellow tinge. Vitamin B12 is required for the formation of red blood cells and the maintenance of a healthy nervous system.

Anemia caused by a lack of matured, healthy red blood cells in the body, similar to iron deficiency anemia, can cause your skin to become pale. Jaundice is a disorder in which your skin and the whites of your eyes get a yellowish color due to a B12 deficiency. High amounts of bilirubin, a waste product produced when your body breaks down red blood cells, cause the color. Besides, vitamin B12 deficiency can lead to pigmentation problems and patchy skin, as a result of not eating enough veggies and fresh fruits, your skin may seem dull and dark.