Frequency: Once to twice weekly for maintenance, or more frequently during deficiency correction
However, most people buying them have no clear idea whether they
You should see Dom's work in TBI
Schumacher FR, Wang Z, Skotheim RI, Koster R, Chung CC, Hildebrandt MA , Kratz CP, Bakken AC, Bishop DT, Cook MB, Erickson RL, Foss SD, Greene MH, Jacobs KB, Kanetsky PA, Kolonel LN, Loud JT, Korde LA, Le Marchand L, Lewinger JP, Lothe RA, Pike MC, Rahman N, Rubertone MV, Schwartz SM, Siegmund KD, Skinner EC, Turnbull C, Van Den Berg DJ, Wu X, Yeager M, Nathanson KL, Chanock SJ, Cortessis VK, McGlynn KA
This led researchers to conduct a study 14 examining the effectiveness of sublingual vitamin B12 in 18 people (age range 2380) with vitamin B12 deficiency
Biomaterials 31 , 20342042 (2010)