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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 "Vitamin B12: Fact Sheet for Health Professionals"

Its not only about effectivenesscomfort matters too

It is also believed to contribute to better physical performance by enhancing oxygen delivery to muscles, reducing muscle fatigue, improving muscle strength and endurance, and speeding up muscle recovery after workouts

"Small molecule nicotinamide N-methyltransferase inhibitor activates senescent muscle stem cells and improves regenerative capacity of aged skeletal muscle." Biochemical Pharmacology

The Food and Nutrition Board sets dietary reference intakes to help you meet your needs based on age, life stage, and health status
