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Avoid the cookbooks written by health gurus and doctors <bitter experience> the I think there are a few blogs which are pretty good. I breathe...I'm hungry has a good ebook - most of her recipes can be found on her blog, she has a great palate and focus on flavour. Marks daily apple and health bent are well worth a look, although some of the recipes are higher in carbs than you may want as they are Primal/Paleo