Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings".
* Total i10 IndexRankings
Ranking Based On Selection :1
Clinical and Nutritional Biochemistry
Epidemiology of Chronic Diseases
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
40
0.678
* Total i10 IndexRankings
Ranking Based On Selection :2
Ethnobotanical Biochemistry
Toxicology
Nutritional and Clinical Biochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
24
0.429
* Total i10 IndexRankings
Ranking Based On Selection :3
Medical Biochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
50
28
0.560
* Total i10 IndexRankings
Ranking Based On Selection :4
sickle cell research
phytomedicine
enzymology
medical biochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
23
0.479
* Total i10 IndexRankings
Ranking Based On Selection :5
clinical biochemistry
Toxicological biochemistry
Medicinal plant research and utilisation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
18
0.375
* Total i10 IndexRankings
Ranking Based On Selection :6
Clinical Biochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
11
0.234
* Total i10 IndexRankings
Ranking Based On Selection :7
Functional foods
Phytotherapy
Heavy metal toxicity
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
44
1.000
* Total i10 IndexRankings
Ranking Based On Selection :8
Clinical biochemistry
Toxicological biochemistry
Medicinal plant research and utilisation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
43
23
0.535
* Total i10 IndexRankings
Ranking Based On Selection :9
Phytomedicine
Medical Biochemistry
Molecular Toxicology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
36
0.878
* Total i10 IndexRankings
Ranking Based On Selection :10
Clinical Biochemistry
Bioinformatics
Genomics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
34
0.919
* Total i10 IndexRankings
Ranking Based On Selection :11
Biochemical Toxicology
Clinical Biochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
14
0.389
* Total i10 IndexRankings
Ranking Based On Selection :12
Nutritional/Medical Biochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
34
20
0.588
* Total i10 IndexRankings
Ranking Based On Selection :13
Medical Biochemistry
Biochemical Toxicology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
33
22
0.667
* Total i10 IndexRankings
Ranking Based On Selection :14
Medical Biochemistry
Nutritional Biochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
19
0.594
* Total i10 IndexRankings
Ranking Based On Selection :15
Mineral metabolism
exercise physiology and general clinical biochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
13
0.406
* Total i10 IndexRankings
Ranking Based On Selection :16
Environmental
Food and Toxicological Biochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
23
0.767
* Total i10 IndexRankings
Ranking Based On Selection :17
Clinical Biochemistry
Malaria Research & Toxicology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
24
0.889
* Total i10 IndexRankings
Ranking Based On Selection :18
Malaria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
9
0.360
* Total i10 IndexRankings
Ranking Based On Selection :19
clinical Biochemistry-Nutrition and Metabolism
Bioenergetics
Endocrinology and Enzymology. Other research areas are Biochemist
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
13
0.542
* Total i10 IndexRankings
Ranking Based On Selection :20
Medical Biochemistry
Immunology and molecular biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
12
0.500
* Total i10 IndexRankings
Ranking Based On Selection :21
Drug metabolism and Mechanistic toxicology
Phytomedicine and Nanomedicine
Medical Biochemistry: Metabolic disorders and Cancer
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
21
0.955
* Total i10 IndexRankings
Ranking Based On Selection :22
Molecular parasitology
Epidemiology
Genomic epidemiology
drug resistance
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
18
0.857
* Total i10 IndexRankings
Ranking Based On Selection :23
Medical Biochemistry (Free Radical Research)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
14
0.667
* Total i10 IndexRankings
Ranking Based On Selection :24
Medicinal plants and natural products
Diabetes
Malaria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
12
0.632
* Total i10 IndexRankings
Ranking Based On Selection :25
Food Composition Analysis
Molecular Nutrition
Public Health Nutrition
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
10
0.526
Chukwunonso Ecc Ejike
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
40
0.678
Clinical and Nutritional Biochemistry
Epidemiology of Chronic Diseases
Eyong U. Eyong
University of Calabar
Calabar, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
24
0.429
Ethnobotanical Biochemistry
Toxicology
Nutritional and Clinical Biochemistry
Paul C. Chikezie
Imo State University Owerri
Owerri, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
50
28
0.560
Medical Biochemistry
Augustine Amadikwa Uwakwe
University of Port Harcourt
Port Harcourt, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
23
0.479
sickle cell research
phytomedicine
enzymology
medical biochemistry
Ime B. Umoh
University of Calabar
Calabar, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
18
0.375
clinical biochemistry
Toxicological biochemistry
Medicinal plant research and utilisation
Offiong U. Eka
University of Calabar
Calabar, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
11
0.234
Clinical Biochemistry
Ademola C. Famurewa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
44
1.000
Functional foods
Phytotherapy
Heavy metal toxicity
Mbeh Eteng
University of Calabar
Calabar, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
43
23
0.535
Clinical biochemistry
Toxicological biochemistry
Medicinal plant research and utilisation
Ojo Adebola Busola
Afe Babalola University
Ado-Ekiti, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
36
0.878
Phytomedicine
Medical Biochemistry
Molecular Toxicology
Rotimi Solomon Oladapo
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
34
0.919
Clinical Biochemistry
Bioinformatics
Genomics
Monday Isaiah Akpanabiatu
University of Uyo
Uyo, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
36
14
0.389
Biochemical Toxicology
Clinical Biochemistry
Danladi Amodu Ameh
Ahmadu Bello University
Zaria, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
34
20
0.588
Nutritional/Medical Biochemistry
Ugwu Chidiebere E
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
33
22
0.667
Medical Biochemistry
Biochemical Toxicology
Funmi Akanya|OA Helmina, H Akanya, OM Akanya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
19
0.594
Medical Biochemistry
Nutritional Biochemistry
Samuel C Meludu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
13
0.406
Mineral metabolism
exercise physiology and general clinical biochemistry
Nwogo Ajuka Obasi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
23
0.767
Environmental
Food and Toxicological Biochemistry
Ehimwenma Sheena Omoregie
University of Benin
Benin City, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
27
24
0.889
Clinical Biochemistry
Malaria Research & Toxicology
Innocent Onyesom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
9
0.360
Blessing Idonije
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
13
0.542
clinical Biochemistry-Nutrition and Metabolism
Bioenergetics
Endocrinology and Enzymology. Other research areas are Biochemist
Mohammed Nasir Shuaibu
Ahmadu Bello University
Zaria, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
12
0.500
Medical Biochemistry
Immunology and molecular biology
Olusola Bolaji Adewale
Afe Babalola University
Ado-Ekiti, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
21
0.955
Drug metabolism and Mechanistic toxicology
Phytomedicine and Nanomedicine
Medical Biochemistry: Metabolic disorders and Cancer
Anthonius Anayochukwu Eze
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
18
0.857
Molecular parasitology
Epidemiology
Genomic epidemiology
drug resistance
Victor Ogugua
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
14
0.667
Medical Biochemistry (Free Radical Research)
Omonkhua Akhere A.
University of Benin
Benin City, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
12
0.632
Medicinal plants and natural products
Diabetes
Malaria
Ikechukwu Edwin Ezeagu
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
10
0.526
Food Composition Analysis
Molecular Nutrition
Public Health Nutrition