A recent Japanese study published in Nutrients suggests a significant link between deficiencies in vitamin B12 and folate (vitamin B9) and the experience of chronic fatigue. Researchers observed that elevated levels of homocysteine, a biomarker indicating insufficient B12 and folate, were associated with increased reports of physical fatigue in men and lower motivation in women.
While the study's cross-sectional design prevents establishing direct causation, the findings align with existing knowledge of these vitamins' roles in energy metabolism and neurological function. Experts advise that maintaining adequate B12 and folate levels through a balanced diet rich in fruits, vegetables, and lean proteins, or through supplementation if necessary, could be beneficial for managing fatigue-related symptoms and supporting overall metabolic health.
