Sources: Institute of Medicine, Food and Nutrition Board, National Academies of Science, Dietary Reference Intakes (DRI): Recommended Dietary Allowances and Adequate Intakes , USA 2018, Mustafa Vakur Bor, Kristina M von Castel-Roberts, Gail PA Kauwell, Sally P Stabler, Robert H Allen, David R Maneval, Lynn B Bailey Ebba Nexo Daily intake of 4 to 7 g dietary vitamin B-12 is associated with steady concentrations of vitamin B-12related biomarkers in a healthy young population Am J Clin Nutr 2010 91: 3 571-577
Folic Acid Injection IVThe fast-acting, effective solution for folate deficiency, anemia, pregnancy support, and complete parenteral nutrition
A scalable integrated dopant-free heterostructure to stabilize perovskite solar cell modules
Selected recent literature for research reference: Coutinho LFD et al
Explain the situation
Middle-aged adults (30-60) Represent the primary target population with standard dosing protocols directly applicable