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American Journal of Clinical Nutrition
H-index 64

American Journal of Clinical Nutrition

0002-9165

Published by: Oxford University Press

https://academic.oup.com/ajcn

Ranking & Metrics

Discipline name Position Best Scientists Publications D-Index
Medicine 129 978 1001 63

Additional Metrics

Number of Best Scientists*: 1381
Documents by Best Scientists*: 1192
Top 100 Ranked Scientists*: 60
SCIMAGO H-index: 390
SCIMAGO SJR: 2.111
Impact Factor: 6.9

Overview

Top Research Topics at The American Journal of Clinical Nutrition?

The journal is mainly concerned with subjects like Internal medicine, Endocrinology, Food science, Obesity and Biochemistry. The work on Internal medicine addressed in it expands to the thematically related Gastroenterology. The American Journal of Clinical Nutrition dives deep in exploring the relationship between the study of Endocrinology and Animal science.

The study on Obesity featured in it expounds on the topic of Overweight in particular. The majority of Vitamin studies in The American Journal of Clinical Nutrition are focused on the subject of Retinol. Presentations on Cholesterol include those discussing Blood lipids and Lipoprotein.

Many of the studies tackled connect Excretion with a similar field of study like Urine.

  • Internal medicine (44.06%)
  • Endocrinology (36.42%)
  • Food science (11.78%)

What are the most cited papers published in the journal?

  • Polyphenols: food sources and bioavailability (5341 citations)
  • Physical Status: The Use and Interpretation of Anthropometry (3728 citations)
  • A short questionnaire for the measurement of habitual physical activity in epidemiological studies (3105 citations)

Research areas of the most cited articles at The American Journal of Clinical Nutrition:

The most cited articles are organized to address concerns in the fields of Internal medicine, Endocrinology, Obesity, Food science and Body mass index. The most cited articles focus on Internal medicine research which is adjacent to topics in Gastroenterology. The most cited articles investigate Endocrinology research which frequently intersects with Animal science.

What topics the last edition of the journal is best known for?

  • Internal medicine
  • Disease
  • Enzyme

The previous edition focused in particular on these issues:

The American Journal of Clinical Nutrition was organized to reinforce research efforts on Internal medicine, Obesity, Physiology, Randomized controlled trial and Prospective cohort study. The journal holds forums on Internal medicine that merges themes from other disciplines such as Gastroenterology and Endocrinology. Demography and Environmental health are some topics wherein Obesity research discussed in The American Journal of Clinical Nutrition have an impact.

The research on Physiology discussed in The American Journal of Clinical Nutrition draws on the closely related field of Pregnancy. The American Journal of Clinical Nutrition focuses on Randomized controlled trial as well as the interrelated topic of Meta-analysis. While work presented in The American Journal of Clinical Nutrition provided substantial information on Prospective cohort study, it also covered topics in Epidemiology and Proportional hazards model.

The most cited articles from the last journal are:

  • Diet and physical activity during the coronavirus disease 2019 (COVID-19) lockdown (March-May 2020): results from the French NutriNet-Santé cohort study. (50 citations)
  • Habitual use of vitamin D supplements and risk of coronavirus disease 2019 (COVID-19) infection: a prospective study in UK Biobank. (18 citations)
  • Ultra-processed food consumption is associated with increased risk of all-cause and cardiovascular mortality in the Moli-sani Study (17 citations)

Papers citation over time

A key indicator for each journal is its effectiveness in reaching other researchers with the papers published at that venue.

The chart below presents the interquartile range (first quartile 25%, median 50% and third quartile 75%) of the number of citations of articles over time.

The top authors publishing in The American Journal of Clinical Nutrition (based on the number of publications) are:

  • Walter C. Willett (258 papers) published 12 papers at the last edition, 4 more than at the previous edition,
  • Frank B. Hu (182 papers) published 8 papers at the last edition the same number as at the previous edition,
  • Arne Astrup (112 papers) published 3 papers at the last edition the same number as at the previous edition,
  • Eric B. Rimm (108 papers) published 6 papers at the last edition, 4 more than at the previous edition,
  • Bo Lönnerdal (103 papers) published 1 paper at the last edition.

The overall trend for top authors publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top authors.

Only papers with recognized affiliations are considered

The top affiliations publishing in The American Journal of Clinical Nutrition (based on the number of publications) are:

  • Harvard University (890 papers) published 84 papers at the last edition, 39 more than at the previous edition,
  • National Institutes of Health (530 papers) published 28 papers at the last edition, 16 more than at the previous edition,
  • University of California, Davis (494 papers) published 17 papers at the last edition, 6 more than at the previous edition,
  • United States Department of Agriculture (473 papers) published 4 papers at the last edition, 2 more than at the previous edition,
  • Tufts University (340 papers) published 29 papers at the last edition, 18 more than at the previous edition.

The overall trend for top affiliations publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top affiliations.

Publication chance based on affiliation

The publication chance index shows the ratio of articles published by the best research institutions in the journal edition to all articles published within that journal. The best research institutions were selected based on the largest number of articles published during all editions of the journal.

The chart below presents the percentage ratio of articles from top institutions (based on their ranking of total papers).Top affiliations were grouped by their rank into the following tiers: top 1-10, top 11-20, top 21-50, and top 51+. Only articles with a recognized affiliation are considered.

During the most recent 2021 edition, 1.66% of publications had an unrecognized affiliation. Out of the publications with recognized affiliations, 38.05% were posted by at least one author from the top 10 institutions publishing in the journal. Another 9.51% included authors affiliated with research institutions from the top 11-20 affiliations. Institutions from the 21-50 range included 16.28% of all publications and 36.15% were from other institutions.

Returning Authors Index

A very common phenomenon observed among researchers publishing scientific articles is the intentional selection of journals they have already attended in the past. In particular, it is worth analyzing the case when the authors participate in the same journal from year to year.

The Returning Authors Index presented below illustrates the ratio of authors who participated in both a given as well as the previous edition of the journal in relation to all participants in a given year.

Returning Institution Index

The graph below shows the Returning Institution Index, illustrating the ratio of institutions that participated in both a given and the previous edition of the conference in relation to all affiliations present in a given year.

The experience to innovation index

Our experience to innovation index was created to show a cross-section of the experience level of authors publishing in a journal. The index includes the authors publishing at the last edition of a journal, grouped by total number of publications throughout their academic career (P) and the total number of citations of these publications ever received (C).

The group intervals were selected empirically to best show the diversity of the authors' experiences, their labels were selected as a convenience, not as judgment. The authors were divided into the following groups:

  • Novice - P < 5 or C < 25 (the number of publications less than 5 or the number of citations less than 25),
  • Competent - P < 10 or C < 100 (the number of publications less than 10 or the number of citations less than 100),
  • Experienced - P < 25 or C < 625 (the number of publications less than 25 or the number of citations less than 625),
  • Master - P < 50 or C < 2500 (the number of publications less than 50 or the number of citations less than 2500),
  • Star - P ≥ 50 and C ≥ 2500 (both the number of publications greater than 50 and the number of citations greater than 2500).

The chart below illustrates experience levels of first authors in cases of publications with multiple authors.

Career Opportunities in the Field of Clinical Nutrition Research

One crucial aspect that this article does not cover is career opportunities within the field of clinical nutrition research. This information can provide additional value and encourage interest among aspiring researchers or professionals seeking to transition into this domain. The field of clinical nutrition research boasts a myriad of exciting and fulfilling career opportunities. From academia to industry, nonprofit work and governmental agencies, these options span a wide range. Aspiring clinical nutrition researchers could find themselves conducting groundbreaking studies in a university setting, formulating novel dietary products in the food industry, or impacting public health policies at a governmental level. Many posts in this field require advanced educational qualifications. For instance, positions in academic or governmental research often require a Ph.D. in Nutrition, Biochemistry, or a related field. Additionally, several roles may necessitate specific certifications or licenses. Notably, for those seeking to be licensed as a Dietician or Nutritionist, state-specific requirements, such as the tennessee nursing license requirements, can guide education and examinations. Practitioners in this field are highly encouraged sign up for continuing education courses, webinars, and workshops to keep abreast of the latest research and trends in nutrition science. Additionally, networking with other professionals, through conferences and professional organizations, can lead to collaborative opportunities and potential job offers. With endless opportunities for growth and a direct impact on health outcomes, a career in Clinical Nutrition Research proves both rewarding and impactful.

Top Publications

  • Diet and physical activity during the coronavirus disease 2019 (COVID-19) lockdown (March-May 2020): results from the French NutriNet-Santé cohort study.

    Mélanie Deschasaux-Tanguy;Nathalie Druesne-Pecollo;Younes Esseddik;Fabien Szabo De Edelenyi

    (2021)
    354 Citations
  • COVID-19 pandemic and mitigation strategies: implications for maternal and child health and nutrition.

    Nadia Akseer;Goutham Kandru;Emily C Keats;Zulfiqar Ahmed Bhutta

    (2020)
    315 Citations
  • International tables of glycemic index and glycemic load values 2021: a systematic review.

    Fiona S Atkinson;Jennie C Brand-Miller;Kaye Foster-Powell;Anette E Buyken

    (2021)
    284 Citations
  • Stunting in childhood: an overview of global burden, trends, determinants, and drivers of decline.

    Tyler Vaivada;Nadia Akseer;Selai Akseer;Ahalya Somaskandan

    (2020)
    245 Citations
  • The energy balance model of obesity: beyond calories in, calories out.

    (2022)
    227 Citations
  • The carbohydrate-insulin model: a physiological perspective on the obesity pandemic.

    David S Ludwig;David S Ludwig;Louis J Aronne;Arne Astrup;Rafael de Cabo

    (2021)
    202 Citations
  • Calf circumference: cutoff values from the NHANES 1999-2006.

    Maria Cristina Gonzalez;Maria Cristina Gonzalez;Ali Mehrnezhad;Nariman Razaviarab;Thiago G Barbosa-Silva

    (2021)
    151 Citations
  • Associations of plasma trimethylamine N-oxide, choline, carnitine, and betaine with inflammatory and cardiometabolic risk biomarkers and the fecal microbiome in the Multiethnic Cohort Adiposity Phenotype Study.

    Benjamin C Fu;Benjamin C Fu;Benjamin C Fu;Meredith A J Hullar;Timothy W Randolph;Adrian A Franke

    (2020)
    143 Citations
  • Ultra-processed food consumption is associated with increased risk of all-cause and cardiovascular mortality in the Moli-sani Study

    Marialaura Bonaccio;Augusto Di Castelnuovo;Simona Costanzo;Amalia De Curtis

    (2021)
    132 Citations
  • Effect of cocoa flavanol supplementation for the prevention of cardiovascular disease events: the COcoa Supplement and Multivitamin Outcomes Study (COSMOS) randomized clinical trial

    (2022)
    118 Citations

Related Online Degrees & Career Pathways

For those interested in expanding their healthcare career options beyond traditional medical degrees, there are several online programs designed to fit diverse professional goals. Students and working professionals can explore a fast track nutrition degree online to specialize in dietary science, which complements a medical background and opens doors to roles in wellness and preventive care.

Leadership roles in healthcare often require advanced business knowledge, which can be attained through an online healthcare MBA. This degree blends management skills with healthcare expertise, preparing graduates for administrative positions in hospitals, clinics, and healthcare companies.

For those who want to transition into nursing quickly, online accelerated nursing programs for non nurses offer an efficient path to obtain a Bachelor of Science in Nursing. These programs are ideal for individuals with degrees in other fields seeking hands-on clinical roles.

Advanced practice nurses looking to specialize in mental health can consider becoming a Doctor of Nursing Practice (DNP) Psychiatric Nurse Practitioner. Insights on earning potential, such as the dnp psychiatric nurse practitioner salary, help guide career decisions with financial clarity.

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