As Marion Nestle points out in Food Politics, nutritionists and other food writers often use the "Vancouver" style citations:
"[Vancouver style] citations follow the spare, unpunctuated . . . style used by most biological science journals as described in JAMA 1993;269:2282-2286 (Journal of the American Medical Association, 1993, volume 269, pages 2282-2286)."
"Issue numbers sometimes follow the volume in parentheses; thus Food Technology 1989;43(4):144-150 refers to a paper published in the April issue."
"As is customary in Vancouver style, text citations to references sometimes appear out of numerical order; these are cross-references to material cited earlier in the same chapter."
"To save space, references to most U.S. government reports omit their publisher, the U.S. Government Printing Office, and . . ."
. . . citations to articles in professional journals with more than four authors list only the first three (followed by et al.)."
"For clarity, most references give the full name of the agency and full title of the journal, but the following standard abbreviations are used . . ."
|Am J Clin Nutr
||American Journal of Clinical Nutrition
||U.S. Department of Health and Human Services
||U.S. Food and Drug Administration
||Journal, Journal of, Journal of the
|J Am Diet Assoc
||Journal of the American Dietetic Association
||Journal of the American Medical Association
|N Engl J Med
||New England Journal of Medicine
||U.S. Department of Agriculture
-- Food Politics, Rev. Ed. (Berkley, CA: University of California Press, 2007, p. 407)