Essential for nerve health, DNA production, and energy metabolism.
A 2021 study found methylcobalamin (the active form of B12) to be more bioavailable and beneficial for cognitive function and nerve regeneration than other forms of B12.
i. Obeid, R., et al. (2021). Methylcobalamin vs cyanocobalamin: Bioavailability and neurological effects. Frontiers in Nutrition, 8, 649658.
ii. Gröber, U., et al. (2022). Vitamin B12 in health and disease: A functional approach. Nutrients, 14(5), 987.