The Bad Bug Book is worth a look. They have lots of stuff on food labelling. Netbiochem has some fairly well laid-out nutritional information together with a couple of quizzes. California State University has a Nutrition and food bibliography of the CSUN collection. Also some interesting stuff on the glycaemic index of various foods.
Medical References have a vast number of nutrition-related references.
Well worth a peek. The thesauri can be downloaded. MINT , the Institute for Postgraduate Education in Clinical Nutrition, organises nutrition courses and workshops, and although most of the website is at present in Dutch, is rapidly going international. Information on Vitamin E at a Danish site is also worthwhile. National Institutes of Health Consensus Statements can be found here .