vitamin b12 and folico acidDeficiency of these vitamins can cause anemia Vitamin B12 deficiency causes neuropathies, among other conditions, as well as anemia. Folate, also a B vitamin, helps produce energy from carbohydrates, hence the fatigue caused by folate deficiency. Folate is among the vitamins recommended for expectant mothers because it prevents neurological deficiencies in the fetus. Both a lack of intake of foods rich in these vitamins and problems in their