Abstract
Background
Current dietary guidelines generally treat all types of vegetables the same. However, whether specific vegetables are more beneficial or deleterious for preventing chronic liver disease (CLD) remains uncertain.
Methods
We investigated the associations between starchy and non-starchy vegetables and the odds of hepatic steatosis and fibrosis in a US nationwide cross-sectional study. Diet was assessed by the 24-h dietary recalls. Hepatic steatosis and fibrosis were defined based on vibration-controlled transient elastography (TE). Multiple logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs).
Results
Among 4170 participants with reliable TE test, 1436 were diagnosed with steatosis, 255 with advanced fibrosis. Increased intake of total starchy vegetables was associated with higher odds of steatosis (OR per 1-SD increment 1.11, 95% CI 1.01–1.24) and advanced fibrosis (OR = 1.39, 95% CI 1.15–1.69). Similar positive associations were observed for potatoes. Conversely, intakes of total non-starchy (OR = 0.82, 95% CI 0.71–0.95) and dark-green vegetables (OR = 0.89, 95% CI 0.82–0.97) were inversely associated with steatosis prevalence. Replacing 5% of energy from starchy vegetables (OR = 0.65, 95% CI 0.44–0.97) or potatoes (OR = 0.65, 95% CI 0.43–0.97) with equivalent energy from dark-green vegetables was associated with lower odds of steatosis.
Conclusions
These findings support the recommendation to limit starchy vegetable intake and increase non-starchy vegetable intake in CLD prevention, and provide evidence for the potential health benefit from dietary substitution of non-starchy vegetables for starchy vegetables.
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Availability of data and materials
The data of this study were from public data; it will be made available to other researchers. The data were made available at https://wwwn.cdc.gov/nchs/nhanes/continuousnhanes/default.aspx?BeginYear=2017.
Abbreviations
- BMI:
-
Body mass index
- CAP:
-
Controlled attenuation parameter
- CI:
-
Confidence interval
- CLD:
-
Chronic liver disease
- CRP:
-
C-reactive protein
- GI:
-
Glycemic index
- GL:
-
Glycemic load
- HbA1c:
-
Hemoglobin A1c
- HBV:
-
Hepatitis B virus
- HCV:
-
Hepatitis C virus
- hs-CRP:
-
High-sensitivity CRP
- IL-6:
-
Interleukin 6
- IQR:
-
Interquartile range
- LSM:
-
Liver stiffness measurement
- MEC:
-
Mobile Examination Center
- METS:
-
Metabolic equivalent tasks
- NAFLD:
-
Nonalcoholic fatty liver disease
- NCHS:
-
National Centers for Health Statistics
- NHANES:
-
National Health and Nutrition Examination Survey
- OR:
-
Odds ratio
- SD:
-
Standard deviation
- TE:
-
Transient elastography
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (82073651), Anhui Provincial Natural Science Foundation (2008085MH262 and 2108085QH357), Anhui Provincial Education Department (gxyqZD2021099), and grants from Anhui Medical University (XJ201935, 2020lcxk033, and 2021xkjT007). The funding agency had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Funding
This work was supported by the National Natural Science Foundation of China (82073651), Anhui Provincial Natural Science Foundation (2008085MH262 and 2108085QH357), Anhui Provincial Education Department (gxyqZD2021099), and grants from Anhui Medical University (XJ201935, 2020lcxk033, and 2021xkjT007).
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XL, TZ, and HL had full access to all the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. Study concept and design: WY and XL. Acquisition, analysis, or interpretation of data: all authors. Drafting of the manuscript: XL and WY. Critical revision of the manuscript for important intellectual content: all authors. Statistical analysis: XL, TZ, and HL. Obtained funding: WY. Administrative, technical, or material support: WY. Study supervision: WY.
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Xiude Li, Tengfei Zhang, Haowei Li, Zhihao Zhou, Meiling Li, Xueke Zeng, Hu Yang, Mingyi Zhang, Yong Huang, Yu Zhu, Zhuang Zhang, Yanan Ma and Wanshui Yang declare that they have no conflict of interest.
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The NCHS Research Ethics Review Board approved the NHANES study protocols (Protocol #2011–17; Protocol #2018–01).
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Li, X., Zhang, T., Li, H. et al. Associations between intake of starchy and non-starchy vegetables and risk of hepatic steatosis and fibrosis. Hepatol Int 16, 846–857 (2022). https://doi.org/10.1007/s12072-022-10368-x
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DOI: https://doi.org/10.1007/s12072-022-10368-x