Positive Correlation Between Serum Limonene Levels and Muscle Health in a Representative Adult Population in the United States

<b>Background/Objectives:</b> Monoterpenes, a class of organic compounds with the molecular formula C<sub>10</sub>H<sub>16</sub>, have garnered significant attention for their potential medicinal benefits. Emerging evidence suggests they may positively influence s...

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Main Authors: Chang-Chin Wu, Yu-Wei Fang, Chikang Wang, Chien-Yu Lin
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Pharmaceuticals
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Online Access:https://www.mdpi.com/1424-8247/18/1/74
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author Chang-Chin Wu
Yu-Wei Fang
Chikang Wang
Chien-Yu Lin
author_facet Chang-Chin Wu
Yu-Wei Fang
Chikang Wang
Chien-Yu Lin
author_sort Chang-Chin Wu
collection DOAJ
description <b>Background/Objectives:</b> Monoterpenes, a class of organic compounds with the molecular formula C<sub>10</sub>H<sub>16</sub>, have garnered significant attention for their potential medicinal benefits. Emerging evidence suggests they may positively influence skeletal muscle function. However, the impact of monoterpene exposure on muscle strength and mass in humans remains unclear. <b>Methods</b>: To explore this relationship, we analyzed data from 1202 adults (aged ≥ 18 years) who participated in the 2013–2014 National Health and Nutrition Examination Survey (NHANES), focusing on serum levels of three specific monoterpenes—α-pinene, β-pinene, and limonene—and their association with hand grip strength and lean muscle mass. <b>Results:</b> Our analysis revealed that, except for test 2 of hand 1, all grip strength measures showed a positive correlation with ln-limonene levels. The β coefficient for combined grip strength was 2.409 (S.E. = 0.891, <i>p</i> = 0.015). Positive associations were also found between serum limonene levels and lean muscle mass. The β coefficient for the Appendicular Skeletal Muscle Mass Index (ASMI) was 0.138 (S.E. = 0.041, <i>p</i> = 0.004). Furthermore, combined grip strength and ASMI significantly increased across limonene quintiles (<i>p</i> for trend = 0.005 and 0.006, respectively). However, none of the three monoterpene levels showed a significant association with clinically defined low muscle mass or low muscle strength. <b>Conclusions:</b> Our findings suggest a plausible association between exposure to limonene, hand grip strength, and lean muscle mass among adults in the United States. Further investigation is needed to fully understand the underlying mechanisms and medical significance of this association.
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spelling doaj-art-126f610f6ba745bbb0bbcdc32adcc7b22025-01-24T13:45:17ZengMDPI AGPharmaceuticals1424-82472025-01-011817410.3390/ph18010074Positive Correlation Between Serum Limonene Levels and Muscle Health in a Representative Adult Population in the United StatesChang-Chin Wu0Yu-Wei Fang1Chikang Wang2Chien-Yu Lin3Department of Orthopedics, En Chu Kong Hospital, New Taipei City 237, TaiwanDivision of Nephrology, Department of Internal Medicine, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei 111, TaiwanDepartment of Environmental Engineering and Health, Yuanpei University of Medical Technology, Hsinchu 300, TaiwanSchool of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City 242, Taiwan<b>Background/Objectives:</b> Monoterpenes, a class of organic compounds with the molecular formula C<sub>10</sub>H<sub>16</sub>, have garnered significant attention for their potential medicinal benefits. Emerging evidence suggests they may positively influence skeletal muscle function. However, the impact of monoterpene exposure on muscle strength and mass in humans remains unclear. <b>Methods</b>: To explore this relationship, we analyzed data from 1202 adults (aged ≥ 18 years) who participated in the 2013–2014 National Health and Nutrition Examination Survey (NHANES), focusing on serum levels of three specific monoterpenes—α-pinene, β-pinene, and limonene—and their association with hand grip strength and lean muscle mass. <b>Results:</b> Our analysis revealed that, except for test 2 of hand 1, all grip strength measures showed a positive correlation with ln-limonene levels. The β coefficient for combined grip strength was 2.409 (S.E. = 0.891, <i>p</i> = 0.015). Positive associations were also found between serum limonene levels and lean muscle mass. The β coefficient for the Appendicular Skeletal Muscle Mass Index (ASMI) was 0.138 (S.E. = 0.041, <i>p</i> = 0.004). Furthermore, combined grip strength and ASMI significantly increased across limonene quintiles (<i>p</i> for trend = 0.005 and 0.006, respectively). However, none of the three monoterpene levels showed a significant association with clinically defined low muscle mass or low muscle strength. <b>Conclusions:</b> Our findings suggest a plausible association between exposure to limonene, hand grip strength, and lean muscle mass among adults in the United States. Further investigation is needed to fully understand the underlying mechanisms and medical significance of this association.https://www.mdpi.com/1424-8247/18/1/74monoterpeneshand grip strengthlean muscle masslimoneneNational Health and Nutrition Examination Survey (NHANES)
spellingShingle Chang-Chin Wu
Yu-Wei Fang
Chikang Wang
Chien-Yu Lin
Positive Correlation Between Serum Limonene Levels and Muscle Health in a Representative Adult Population in the United States
Pharmaceuticals
monoterpenes
hand grip strength
lean muscle mass
limonene
National Health and Nutrition Examination Survey (NHANES)
title Positive Correlation Between Serum Limonene Levels and Muscle Health in a Representative Adult Population in the United States
title_full Positive Correlation Between Serum Limonene Levels and Muscle Health in a Representative Adult Population in the United States
title_fullStr Positive Correlation Between Serum Limonene Levels and Muscle Health in a Representative Adult Population in the United States
title_full_unstemmed Positive Correlation Between Serum Limonene Levels and Muscle Health in a Representative Adult Population in the United States
title_short Positive Correlation Between Serum Limonene Levels and Muscle Health in a Representative Adult Population in the United States
title_sort positive correlation between serum limonene levels and muscle health in a representative adult population in the united states
topic monoterpenes
hand grip strength
lean muscle mass
limonene
National Health and Nutrition Examination Survey (NHANES)
url https://www.mdpi.com/1424-8247/18/1/74
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AT chikangwang positivecorrelationbetweenserumlimonenelevelsandmusclehealthinarepresentativeadultpopulationintheunitedstates
AT chienyulin positivecorrelationbetweenserumlimonenelevelsandmusclehealthinarepresentativeadultpopulationintheunitedstates