Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.
Google Scholar provides similar access to scholarly and academic articles on nutrition and fitness studies. Sometimes you can search on an article title to determine if the full text of the study is available, as shown in Figure 2-25.
You may want to bone up on the differences between good and bad science if you’re going to become a PubMed or Google Scholar geek. This article represents a good summary: http://news.yahoo.com/difference-between-good-bad-science-read-scientific-studies.html.