1. Cell Culture: New Year's Diets
Cell 
Volume 144, Issue 1, (January 2011)
DOI: /j.cell
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2. “Ketogenic diets” boost FGF21 secretion, which triggers a switch from carbohydrate to fat metabolism. Image by K. Mahan.
Cell  , DOI: ( /j.cell )
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3. Olives contain the monounsaturated fat oleic acid, which serves as a precursor to a satiation signal during meals. This photo is licensed from Flickr user Steve Jurvetson ( under a Creative Commons Attribution license.
Cell  , DOI: ( /j.cell )
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4. Odors reach olfactory receptors by two routes, through the nose (yellow dots) and through the mouth (blue dots). Image courtesy of Neuron, /j.neuron
Cell  , DOI: ( /j.cell )
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5. Could a boost in dopamine signaling curb cravings in “Phase I” of the South Beach Diet? This photo is licensed from Flickr user miamism ( under a Creative Commons Attribution license.
Cell  , DOI: ( /j.cell )
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