Mapping global research trends: Nutrition associations with nonalcoholic fatty liver disease - a Scopus bibliometric analysis

Table 1 List of the top 10 countries publishing research on diet and nonalcoholic fatty liver disease from 1987 to 2022

Ranking	Country	Number of documents	%
1st	China	539	28.29
2nd	United States	379	19.90
3rd	Japan	133	6.98
4th	South Korea	127	6.67
5th	Italy	117	6.14
6th	Iran	114	5.98
7th	Brazil	74	3.88
8th	Spain	72	3.78
9th	United Kingdom	67	3.52
10th	Germany	60	3.15

Table 2 List of the top 10 institutions publishing research on diet and nonalcoholic fatty liver disease from 1987 to 2022

Ranking1	Institute	Country	No. of documents	%
1st	Shahid Beheshti University of Medical Sciences	Iran	39	2.05
2nd	Ministry of Education of the People's Republic of China	China	36	1.89
3rd	Huazhong University of Science and Technology	China	27	1.42
4th	Iran University of Medical Sciences	Iran	23	1.21
5th	Tehran University of Medical Sciences	Iran	22	1.15
6th	Tongji Medical College of Huazhong University of Science and Technology	China	21	1.10
7th	Instituto de Salud Carlos III	Spain	20	1.05
7h	Tianjin Medical University	China	20	1.05
9th	Universidade de São Paulo	Brazil	19	1.00
9th	Shanghai University of Traditional Chinese Medicine	China	19	1.00

¹Gap is left in the next ranking number when specific institutions are given the same number.

Table 3 List of the top 10 funding agencies with the most publications on diet and nonalcoholic fatty liver disease from 1987 to 2022

Ranking	Funding agency	Country	No. of documents	%
1st	National Natural Science Foundation of China	China	246	12.91
2nd	National Institutes of Health	United States	88	4.62
3rd	National Institute of Diabetes and Digestive and Kidney Diseases	United States	84	4.41
4th	Japan Society for the Promotion of Science	Japan	48	2.52
5th	National Research Foundation of Korea	South Korea	42	2.20
6th	Ministry of Science and Technology, Taiwan	Taiwan	28	1.47
7th	National Cancer Institute	United States	26	1.36
8th	National Institute on Alcohol Abuse and Alcoholism	United States	25	1.31
9th	National Key Research and Development Program of China	China	24	1.26
10th	National Institute of Environmental Health Sciences	United States	22	1.15

Table 4 List of the top 10 journals publishing research on diet and nonalcoholic fatty liver disease from 1987 to 2022

Ranking1	Journal	Frequency	%	IF2
1st	Nutrients	120	6.30	5.9
2nd	Journal of Nutritional Biochemistry	37	1.94	5.6
3rd	International Journal of Molecular Sciences	36	1.89	5.6
4th	PLoS One	35	1.84	3.7
5h	Food and Function	30	1.57	6.1
5th	Hepatology	30	1.57	14.0
7th	Scientific Reports	29	1.52	4.6
8th	World Journal of Gastroenterology	27	1.42	4.3
9th	Frontiers in Nutrition	23	1.21	5.0
10th	Liver International	22	1.15	6.7

¹Gap is left in the next ranking number when specific journals are given the same number;

²Impact factor based on Clarivate Analytics Journal Citation Reports 2022. IF: Impact factor.

Table 5 List of the top 10 most cited papers related to diet and nonalcoholic fatty liver disease from 1987 to 2022

Ref.	Title	Journal	Cited by	Impact index per article1
Bedogni et al[49], 2005	Prevalence of and risk factors for nonalcoholic fatty liver disease: The dionysos nutrition and liver study	Hepatology	1058	45.7
Romero-Gómez et al[54], 2017	Treatment of NAFLD with diet, physical activity and exercise	Journal of Hepatology	748	102.4
Lazo et al[52], 2013	Prevalence of nonalcoholic fatty liver disease in the United States: The third national health and nutrition examination survey, 1988-1994	American Journal of Epidemiology	628	53.7
Musso et al[53], 2003	Dietary habits and their relations to insulin resistance and postprandial lipemia in nonalcoholic steatohepatitis	Hepatology	627	24.2
Bugianesi et al[50], 2005	A randomized controlled trial of metformin versus vitamin E or prescriptive diet in nonalcoholic fatty liver disease	American Journal of Gastroenterology	607	24.9
Vos et al[56], 2017	NASPGHAN Clinical Practice Guideline for the Diagnosis and Treatment of Nonalcoholic Fatty Liver Disease in Children: Recommendations from the Expert Committee on NAFLD (ECON) and the North American Society of Pediatric Gastroenterology, Hepatology and Nutrition (NASPGHAN)	Journal of Pediatric Gastroenterology and Nutrition	556	79.4
Ryan et al[55], 2013	The Mediterranean diet improves hepatic steatosis and insulin sensitivity in individuals with nonalcoholic fatty liver disease	Journal of Hepatology	508	42.5
Zelber-Sagi et al[58], 2007	Long-term nutritional intake and the risk for nonalcoholic fatty liver disease (NAFLD): A population based study	Journal of Hepatology	426	22.5
Wouters et al[57], 2008	Dietary cholesterol, rather than liver steatosis, leads to hepatic inflammation in hyperlipidemic mouse models of nonalcoholic steatohepatitis	Hepatology	391	22.9
Huang et al[51], 2005	One-year intense nutritional counseling results in histological improvement in patients with nonalcoholic steatohepatitis: a pilot study	American Journal of Gastroenterology	378	16.7

¹The impact index per article is based on Reference Citation Analysis. Source: Baishideng Publishing Group Inc (Pleasanton, CA 94566, United States).