Geriatricians also like to pay attention to vitamin B12 because a deficiency can cause or usually worsen cognitive impairment or walking problems
Every cell in your body relies on dietary protein not only for tissue growth, but also to regulate the complex hormonal and metabolic processes, nourish eggs and sperm, build the placenta, and even support breast milk production. 
Kimberly Kinzig, Purdue University, USA Updates Copyright 2015 van den Heuvel, Eggels, van Rozen, Fliers, Kalsbeek, Adan and la Fleur
Furthermore, people with reduced kidney function should avoid it
This gradual escalation allows your body to adapt and minimizes nausea and other adjustment side effects that some people experience
Can this supplement aid in cognitive function