Vitamin B12, or cobalamin, is a water-soluble vitamin that plays an essential role in every cell in the body, including red blood cell formation, nerve function, protein and fat metabolism, and DNA production (molecules that carry genetic information)
The enhanced NAD+ availability and improved mitochondrial function in muscle cells may actually support muscle maintenance and recovery
He added that B12 deficiency "can be undiagnosed or underdiagnosed since symptoms can be nonspecific," like cognitive slowing, fatigue, tongue swelling, arm or leg tingling, and difficulty walking
My internist, Sabena Toor, straddles that divide