2012;16:S267S271
In the acute COVID-19 context, previous studies have demonstrated that vitamin B12 increases the flow of the sulfur amino acid pathway, favoring production of glutathione, an important antioxidant agent, in leukocytes of patients with moderate and severe COVID-19 18
Limitations: No human trials exist for Alzheimer's, Parkinson's, or general cognitive decline
Several studies show improvements or slower declines in mental ability in people with Alzheimer's disease who took ALC
Li AJ, Martinez-Moral M-P, Al-Malki AL, Al-Ghamdi MA, Al-Bazi MM, Kumosani TA, Kannan K (2019) Mediation analysis for the relationship between urinary phthalate metabolites and type 2 diabetes via oxidative stress in a population in Jeddah, Saudi Arabia
Its also possible that your health care provider may prescribe it for other reasons not listed here