University, Subject, Country, Region, World

World 4.730 Scientists Subject Rankings - 2025

The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 yearsAs of Jan 31, 2025, the rankings are determined according to the Total H IndexBETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (873.690) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].

* Total H IndexRankings
Ranking Based On Selection: 1
Barry Popkin
nutrition transition: trends
environmental determinants
consequences
large scale solutions
Metrics
H-Index
i10 Index
Citation Counts
197
649
232,388
* Total H IndexRankings
Ranking Based On Selection: 2
Jose Ordovas
nutrition
aging
genetics
epigenetics
cardiovascular diseases
Metrics
H-Index
i10 Index
Citation Counts
160
913
185,855
* Total H IndexRankings
Ranking Based On Selection: 3
Arne Astrup
nutrition
obesity
metabolism
Metrics
H-Index
i10 Index
Citation Counts
157
756
127,371
* Total H IndexRankings
Ranking Based On Selection: 4
David Ja Jenkins
Use of diet in the prevention and treatment of hyperlipidemia and diabetes
Metrics
H-Index
i10 Index
Citation Counts
154
496
111,369
* Total H IndexRankings
Ranking Based On Selection: 5
Paul Jacques
Nutritional Epidemiology
Metrics
H-Index
i10 Index
Citation Counts
148
397
147,894
* Total H IndexRankings
Ranking Based On Selection: 6
Jacob Jaap Seidell
nutrition obesity public health
Metrics
H-Index
i10 Index
Citation Counts
148
506
152,138
* Total H IndexRankings
Ranking Based On Selection: 9
Ja Martínez
Nutrición
fisiología
alimentación...
Metrics
H-Index
i10 Index
Citation Counts
144
1,100
97,575
* Total H IndexRankings
Ranking Based On Selection: 10
Edith Feskens
Nutrition
Obesity
Malnutrition
DIetary Assessment
Epidemiology
Metrics
H-Index
i10 Index
Citation Counts
144
555
177,823

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* Total H IndexRankings
Ranking Based On Selection: 11
Jordi Salas Salvadó
Nutrition
obesity
diabetes
multiomics
Mediterranean diet
Metrics
H-Index
i10 Index
Citation Counts
141
693
94,870
* Total H IndexRankings
Ranking Based On Selection: 12
Luis A. Moreno Aznar
Nutrición infantil
obesidad
epidemiología
Metrics
H-Index
i10 Index
Citation Counts
141
837
130,313
* Total H IndexRankings
Ranking Based On Selection: 13
Matti Uusitupa
nutrition
type 2 diabetes
metabolomics
nutrgenetics
nutrigenomics
Metrics
H-Index
i10 Index
Citation Counts
141
563
174,385
* Total H IndexRankings
Ranking Based On Selection: 14
Lluis Serra-Majem
nutrición y salud pública
alimentación saludable y sostenible
dieta mediterránea
prevención de la obesidad.
Metrics
H-Index
i10 Index
Citation Counts
139
719
179,492
* Total H IndexRankings
Ranking Based On Selection: 16
Rob M Van Dam
Nutritional Epidemiology
Obesity
Type 2 diabetes
Cardiovascular Diseases
Metrics
H-Index
i10 Index
Citation Counts
136
384
78,411
* Total H IndexRankings
Ranking Based On Selection: 21
Stephen J Simpson
nutrition
entomology
obesity
animal behaviour
comparative physiology
Metrics
H-Index
i10 Index
Citation Counts
126
435
50,162
* Total H IndexRankings
Ranking Based On Selection: 24
Jeff Volek
Nutritional Ketosis
Low Carbohydrate Diets
Metabolism
Metrics
H-Index
i10 Index
Citation Counts
122
354
48,691
* Total H IndexRankings
Ranking Based On Selection: 25
Reynaldo Martorell
Nutrition
child growth and development
maternal and child nutrition
micronutrients
nutrition transition
Metrics
H-Index
i10 Index
Citation Counts
120
471
119,095
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Barry Popkin
Metrics
H-Index
i10-Index
Citation Counts
197
649
232,388
nutrition transition: trends
environmental determinants
consequences
large scale solutions
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Jose Ordovas
Metrics
H-Index
i10-Index
Citation Counts
160
913
185,855
nutrition
aging
genetics
epigenetics
cardiovascular diseases
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Arne Astrup
Metrics
H-Index
i10-Index
Citation Counts
157
756
127,371
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
David Ja Jenkins
Metrics
H-Index
i10-Index
Citation Counts
154
496
111,369
Use of diet in the prevention and treatment of hyperlipidemia and diabetes
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Paul Jacques
Metrics
H-Index
i10-Index
Citation Counts
148
397
147,894
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Jacob Jaap Seidell
Metrics
H-Index
i10-Index
Citation Counts
148
506
152,138
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Serge Hercberg
Metrics
H-Index
i10-Index
Citation Counts
146
819
165,785
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Jacob Selhub
Metrics
H-Index
i10-Index
Citation Counts
146
384
162,948
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Ja Martínez
Metrics
H-Index
i10-Index
Citation Counts
144
1,100
97,575
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Edith Feskens
Metrics
H-Index
i10-Index
Citation Counts
144
555
177,823
Nutrition
Obesity
Malnutrition
DIetary Assessment
Epidemiology

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Jordi Salas Salvadó
Metrics
H-Index
i10-Index
Citation Counts
141
693
94,870
Nutrition
obesity
diabetes
multiomics
Mediterranean diet
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Luis A. Moreno Aznar
Metrics
H-Index
i10-Index
Citation Counts
141
837
130,313
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Matti Uusitupa
Metrics
H-Index
i10-Index
Citation Counts
141
563
174,385
nutrition
type 2 diabetes
metabolomics
nutrgenetics
nutrigenomics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Lluis Serra-Majem
Metrics
H-Index
i10-Index
Citation Counts
139
719
179,492
nutrición y salud pública
alimentación saludable y sostenible
dieta mediterránea
prevención de la obesidad.
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Penny Kris Etherton
Metrics
H-Index
i10-Index
Citation Counts
137
458
171,235
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Rob M Van Dam
Metrics
H-Index
i10-Index
Citation Counts
136
384
78,411
Nutritional Epidemiology
Obesity
Type 2 diabetes
Cardiovascular Diseases
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Carlos Augusto Monteiro
Metrics
H-Index
i10-Index
Citation Counts
136
485
86,517
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Wim H. Saris
Metrics
H-Index
i10-Index
Citation Counts
136
571
64,988
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Andrew Prentice
Metrics
H-Index
i10-Index
Citation Counts
133
549
91,676
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Gary Williamson
Metrics
H-Index
i10-Index
Citation Counts
129
415
66,460
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Stephen J Simpson
Metrics
H-Index
i10-Index
Citation Counts
126
435
50,162
nutrition
entomology
obesity
animal behaviour
comparative physiology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Thomas Ms Wolever
Metrics
H-Index
i10-Index
Citation Counts
126
364
56,622
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Katherine Tucker
Metrics
H-Index
i10-Index
Citation Counts
125
443
58,297
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
Jeff Volek
Metrics
H-Index
i10-Index
Citation Counts
122
354
48,691
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Reynaldo Martorell
Metrics
H-Index
i10-Index
Citation Counts
120
471
119,095
Nutrition
child growth and development
maternal and child nutrition
micronutrients
nutrition transition