Estimated Exposure to 6 Potentially Hepatotoxic Botanicals in US Adults – PubMed Black Hawk Supplements

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CONCLUSIONS AND RELEVANCE: In this survey study, an estimated 15.6 million US adults consumed at least 1 botanical product with liver liability within the past 30 days, comparable with the number of people who consumed nonsteroidal anti-inflammatory drugs and a commonly prescribed hypolipidemic drug. Given a lack of regulatory oversight on the manufacturing and testing of botanical products, clinicians should be aware of possible adverse events from consumption of these largely unregulated…
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Estimated Exposure to 6 Potentially Hepatotoxic Botanicals in US Adults - PubMed

Estimated Exposure to 6 Potentially Hepatotoxic Botanicals in US Adults

Alisa Likhitsup et al. JAMA Netw Open. .

Abstract

Importance: Use of herbal and dietary supplements (HDSs) accounts for an increasing proportion of drug hepatotoxicity cases. Turmeric or curcumin, green tea extract, Garcinia cambogia, black cohosh, red yeast rice, and ashwagandha are the most frequently reported hepatoxic botanicals, but their prevalence and reasons for use in the general population are unknown.

Objective: To assess the prevalence and clinical characteristics of adult consumers of 6 potentially hepatoxic botanicals.

Design, setting, and participants: This survey study analyzed nationally representative data from the National Health and Nutrition Examination Survey (NHANES), a nationally representative, cross-sectional survey of the general US population. Prescription drug and HDS exposure data in the past 30 days were analyzed, and 2020 US Census data were used for population estimates. Data were analyzed July 1, 2023, to February 1, 2024.

Exposures: Adult NHANES participants enrolled between January 2017 and March 2020.

Main outcomes and measures: Baseline weighted characteristics of HDS users and users of 6 potentially hepatotoxic botanical products were compared with non-HDS users. Multivariable analysis was undertaken to identify factors associated with HDS use or at-risk botanical use.

Results: Among 9685 adults enrolled in this NHANES cohort, the mean (SE) age was 47.5 (0.5) years, and 51.8% (95% CI, 50.2%-53.4%) were female. The overall prevalence of HDS product use was 57.6% (95% CI, 55.9%-59.4%), while the prevalence of using the 6 botanicals of interest was 4.7% (95% CI, 3.9%-5.7%). Turmeric-containing botanicals were most commonly used (n = 236), followed by products containing green tea (n = 92), ashwagandha (n = 28), Garcinia cambogia (n = 20), red yeast rice (n = 20), and black cohosh (n = 19). Consumers of these 6 botanicals were significantly older (adjusted odds ratio [AOR], 2.36 [95% CI, 1.06-5.25]; P = .04 for 40-59 years of age and AOR, 3.96 [95% CI, 1.93-8.11]; P = .001 for ≥60 years of age), had a higher educational level (AOR, 4.78 [95% CI, 2.62-8.75]; P < .001), and were more likely to have arthritis (AOR, 2.27 [95% CI, 1.62-3.29]; P < .001) compared with non-HDS users. An estimated 15 584 599 (95% CI, 13 047 571-18 648 801) US adults used at least 1 of the 6 botanical products within the past 30 days, which was similar to the estimated number of patients prescribed potentially hepatotoxic drugs, including simvastatin (14 036 024 [95% CI, 11 202 460-17 594 452]) and nonsteroidal anti-inflammatory drugs (14 793 837 [95% CI, 13 014 623-16 671 897]). The most common reason for consuming turmeric and green tea was to improve or maintain health.

Conclusions and relevance: In this survey study, an estimated 15.6 million US adults consumed at least 1 botanical product with liver liability within the past 30 days, comparable with the number of people who consumed nonsteroidal anti-inflammatory drugs and a commonly prescribed hypolipidemic drug. Given a lack of regulatory oversight on the manufacturing and testing of botanical products, clinicians should be aware of possible adverse events from consumption of these largely unregulated products.

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Conflict of interest statement

Conflict of Interest Disclosures: Dr Chen reported receiving grants from Kowa, AstraZeneca, and Ipsen outside the submitted work. Dr Fontana reported receiving grants from Takeda Pharmaceutical Company and Kezar Life Sciences outside the submitted work. No other disclosures were reported.

Figures

Figure 1.
Figure 1.. Self-Reported Reasons for Consuming 6 Potentially Hepatotoxic Botanical Products
Figure 2.
Figure 2.. United States Population Estimates for Use of 6 Potentially Hepatotoxic Botanical Products Compared With 3 Commonly Prescribed Medications

Data are based on 2020 US Census estimated total resident population 18 years of age or older of 329 484 123 July 1, 2020. Whiskers represent 95% CI. NSAIDs indicates nonsteroidal anti-inflammatory drugs.

References

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Estimated Exposure to 6 Potentially Hepatotoxic Botanicals in US Adults – PubMed