Shen C, Jiang J, Yang L, Wang D, Zhu W (2017) Anti-ageing active ingredients from herbs and nutraceuticals used in traditional Chinese medicine: pharmacological mechanisms and implications for drug discovery
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What gets us from todays ~$10bn to Goldman Sachs' projected $100bn
Both cite the Institute of Medicine which has not established a "Tolerable Upper Intake Level" for vitamin B12, despite having done so for other nutrients as their source
Lancet 1982, 2: 97