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A protest against the killing of journalists by the Islamic State. Credit: Mast Irham/EPA

By Kevin McDonald, Middlesex University


Dora grows up. Credit: Lisa West Photography, CC BY-NC-ND

By Bruce Fuller, University of California, Berkeley


Ideally lollipops, cookies, sugar-sweetened drinks, potato chips and processed meats will never appear in your shopping cart.  

Want to stack the nutrition odds in your favor? The key is good food so here are five things to never let into your shopping trolley: candies, cookies, sugar-sweetened drinks, potato chips and processed meats.

Known as discretionary foods, all five are high in either added sugars, saturated fat or salt. Discretionary foods provide calories but not many nutrients.


Critical mass of editors could help solve the puzzle.Credit: bastique, CC BY-SA

By Mark Graham, University of Oxford


Eyes – windows on the soul?Credit: Ángelo González, CC BY-SA

By Tracy Long-Sutehall, University of Southampton


Soon to be grown for ornamental use only.Credit: Mark Nesbitt and Samuel Delwen, CC BY

By Luc Henry, Swiss Federal Institute of Technology in Lausanne