Herbert V
Am J Clin Nutr. 1987 Apr;45(4):661-70. doi: 10.1093/ajcn/45.4.661.
Extensive evidence is presented that 3 micrograms folate/kg (6.8 nmol/kg) body weight daily will not only maintain adequate folate nutriture but also a substantial reserve body pool in normal persons. Recommendations appropriate to this extensive evidence are presented.