DirectoryFood.com provides diversified information about food such as beverages, breakfast, desserts, fish & seafood, meat, fruits & vegetables, nutrition, sandwiches, special diets, world cuisines.

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Reports from veterans of vegetarian and raw-food diets, veganism, fruitarianism, and instinctive eating, plus new science from paleolithic diet research and clinical nutrition.
http://www.beyondveg.com/
Use of "smart drugs" and nutrients to enhance cognition, and to treat other maladies. Articles and newsletters.
http://www.ceri.com/
Provides abstracts from publications, information on B-12 deficiency, metabolic disorders and alternative nutrition. Newsletter available by subscription.
http://www.johndommissemd.com/