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Navarro V, Khan I, Björnsson E, Seeff LB, Serrano J, Hoofnagle JH. Liver Injury from Herbal and Dietary Supplements. Hepatology. Liver Injury from Herbal and Dietary Supplements - Navarro - 2016 - Hepatology - Wiley Online Library
Herbal and dietary supplements (HDS) are used increasingly both in the United States and worldwide and HDS induced liver injury in the U.S. has increased proportionally.
Current challenges in the diagnosis and management of HDS-induced liver injury were the focus of a 2-day research symposium sponsored by the American Association for the Study of Liver Disease and the National Institutes of Health.
HDS-induced liver injury now accounts for 20% of cases of hepatotoxicity in the United States based on research data.
The major implicated agents include anabolic steroids, green tea extract, and multi-ingredient nutritional supplements (MINS).
Anabolic steroids marketed as bodybuilding supplements typically induce a prolonged cholestatic, but ultimately self-limiting liver injury that has a distinctive serum biochemical as well as histological phenotype. Green tea extract and many other products, in contrast, tend to cause an acute-hepatitis like injury.
Currently, however, the majority of cases of HDS-associated liver injury are due to MINS, and the component responsible for the toxicity is usually unknown or can only be suspected. HDS-induced liver injury presents many clinical and research challenges, in diagnosis, identification of the responsible constituents, treatment and prevention.
Also important are improvements in regulatory oversight of non-prescription products to guarantee their constituents and insure purity and safety.
The confident identification of injurious ingredients within HDS will require strategic alignments among clinicians, chemists, and toxicologists.
The ultimate goal should be to prohibit or more closely regulate potentially injurious ingredients and thus promote public safety.