skip to main content

Nutrition: Articles/Research Databases

Journal Search

Already know which journal you need?

Search or browse E-Journals by Title

Or check out these lists of Online Journals:

Scholarly Article Types

Original research - Written by the researchers who performed the actual, on-the-ground study, these articles include the methods, results and discussion related to a single research project.  Original research articles are considered primary sources and are the major form of communication across most of the sciences.

Case study - A detailed analysis of an individual or group as a model for a particular medical phenomena. Impact limited due to sample size, but can serve as an entry point to more detailed research.

Review - An article that summarizes and synthesizes numerous original research articles.  These articles are heavily used by researchers seeking to keep up with the literature around a topic.  Review articles can be used to identify original articles/authors for further reading.  Review articles are generally written by a researcher, but may include information about studies by numerous other authors. Review articles are considered secondary sources.

Systematic review - A systematic method that uses statistics to analyze the results from numerous studies.  Systematic reviews are widely used in the health sciences, often to find a generalized conclusion from multiple evidence-based studies. Example: "85% of the studies showed a positive correlation with..."

Meta-analysis - A systematic method that uses statistics to analyze the data from numerous studies.  The researcher will combine the actual data from studies with similar data types (i.e. males between 25-30 years old with vitamin D deficiency) and analyze them as a single expanded data set. PubMed/Medline treats meta-analysis as a subset of systematic reviews.

Systematic reviews and meta-analysis articles are a sort of hybrid between primary and secondary  sources because they provide new results based on previously published data, and the authors are basing their conclusions on data collected by others.

Best Resources for Finding Articles

Other Good Resources


Elena Azadbakht's picture
Elena Azadbakht
Mathewson-IGT Knowledge Center
University of Nevada, Reno 89557 MS 322

Room 214C
(775) 682-5654

For NUTR 725

Didn't find what you were looking for?