Table 1.

Top 20 nodes of highly frequent keywords centrality.

Degree centrality		Betweenness centrality		Closeness centrality
Nodes	Degree	Nodes	Degree	Nodes	Degree
Obesity	228	Insulin resistance	184.271	Obesity	83.582
Insulin resistance	153	Obesity	170.087	Insulin resistance	81.159
Diabetes mellitus	125	Cardiovascular risk	130.739	Inflammation	76.712
Cardiovascular risk	119	Inflammation	114.880	Cardiovascular risk	75.676
Inflammation	108	Diabetes mellitus	83.120	Diabetes mellitus	70
Hypertension	108	Mediterranean diet	77.398	Mediterranean diet	69.136
Mediterranean diet	87	Hypertension	41.584	Hypertension	65.882
Dyslipidemia	79	Waist circumference	25.795	Dyslipidemia	62.921
Waist circumference	43	Physical activity	25.397	Lipids	62.222
Fatty acids	43	Lipids	22.994	Waist circumference	61.538
Dietary patterns	41	Dyslipidemia	22.052	Polyphenols	60.215
Dairy food	39	Dietary patterns	18.958	Physical activity	60.215
Oxidative stress	38	Dairy food	18.406	Oxidative stress	59.574
Type 2 diabetes	37	Fatty acids	16.740	Type 2 diabetes	59.574
Physical activity	36	Vitamin D	15.075	Fatty acids	59.574
Lipids	35	Nuts	13.723	Dietary patterns	58.947
Polyphenols	34	Dietary fiber	12.800	Dairy food	58.333
Dietary fat	31	Triglycerides	12.710	Hyperglycemia	58.333
Dietary fiber	29	Oxidative stress	12.656	Dietary fiber	58.333
Calcium	29	Polyphenols	11.987	HDL cholesterol	58.333