Increase in circulating holotranscobalamin after oral administration of cyanocobalamin or hydroxocobalamin in healthy adults with low and normal cobalamin status.
Greibe E, Mahalle N, Bhide V, Heegaard CW, Naik S, Nexo E.
Eur J Nutr. 2017. doi: https://doi.org/10.1007/s00394-017-1553-5

Effect of 8-week oral supplementation with 3-µg cyano-B12 or hydroxo-B12 in a vitamin B12-deficient population. 
Greibe E, Mahalle N, Bhide V, Fedosov S, Heegaard CW, Naik S, Nexo E.
Eur J Nutr. 2017. doi: https://doi.org/10.1007/s00394-017-1590-0

Comparative bioavailability of synthetic B12 and dietary vitamin B12 present in cow and buffalo milk: A prospective study in lactovegetarian Indians.
Mahalle N, Bhide V, Greibe E, Heegaard CW, Nexo E, Fedosov SN, Naik S
Nutrients. 2019;11(2). https://doi.org/10.3390/nu11020304

Vitamin B12 and its Binding Proteins in Milk from Cow and Buffalo in Relation to Bioavailability of B12.
Fedosov SN, Nexo E, Heegaard CW
J Dairy Sci. 2019. In press.