European Journal of Nutrition. SPRINGER HEIDELBERG Niklewicz, A, Smith, A D, Smith, A, Holzer, A, Klein, A, McCaddon, A, Molloy, A M, Wolffenbuttel, B H R, Nexo, E, McNulty, H, Refsum, H, Gueant, J-L, Dib, M-J, Ward, M, Murphy, M, Green, R, Ahmadi, K R, Hannibal, L, Warren, M J, Owen, P J & CluB-12 2023, ' The importance of vitamin B 12 for individuals choosing plant-based diets ', European Journal of Nutrition, vol. 62, no. 3, pp. 1551-1559 . https://doi.org/10.1007/s00394-022-03025-4