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Description
Vitamin B12 is important for brain function, and a deficiency can lead to cognitive impairment, such as memory loss and difficulty concentrating
The fix is to eat your protein earlier before you feel hungry so you are not running a deficit by 8 p.m

[DOI] [PMC free article] [PubMed] [Google Scholar] 68.Lautrup S, Sinclair DA, Mattson MP & Fang EF NAD in brain aging and neurodegenerative disorders

Understanding between these two ensures correct application for each case
