Age and ethnicity influence serum holotranscobalamin (‘Active’ B12) and methylmalonic acid concentrations, two markers of vitamin B12 status assessment
European Journal of Clinical Nutrition, Published online: 24 October 2026; doi:10.1038/s41430-026-01841-z Age and ethnicity influence serum holotranscobalamin (‘Active’ B12) and methylmalonic acid concentrations, two markers of vitamin B12 status assessment European Journal of Clinical Nutrition, Published online: 24 October 2026; doi:10.1038/s41430-026-01841-zAge and ethnicity influence serum holotranscobalamin (‘Active’ B12) and methylmalonic acid concentrations, two markers of […]



