While there are subtleties involved like protein and carb intake, ultimately, losing fat or gaining muscle comes down to one thing: calories in versus calories out. MyFitnessPal for the iPhone is one of the most popular tools for managing this, and here's how to use it.
  from AppleInsider - Frontpage News http://ift.tt/2mpEgBj
  
How to use MyFitnessPal on your iPhone to track calories and eat better
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