Table 6.

Top 20 keywords with the highest occurrence times and their total link strength.

Rank	Keyword	Occurrences	Total link strength	Rank	Keyword	Occurrences	Total link strength
1	metabolomics	1554	2917	11	bile acids	101	236
2	gut microbiota	1249	2124	12	metabolism	99	197
3	microbiome	632	1246	13	nmr	91	214
4	metabolites	172	343	14	type 2 diabetes	65	147
5	metagenomics	161	455	15	16s rrna gene sequencing	63	153
6	short-chain fatty acids	157	354	16	inflammatory bowel diseases	63	161
7	obesity	150	397	17	mass spectrometry	59	147
8	biomarkers	133	281	18	ulcerative colitis	58	132
9	probiotics	128	286	19	diet	55	150
10	inflammation	106	246	20	transcriptomics	55	168