Q: How many calories a day do I need to take in to gain mass and still not gain excess weight? I’m 16 and weigh 180 pounds. I train four or five days a week and have been gaining well over the past ...

Add Yahoo as a preferred source to see more of our stories on Google. Want to lose weight? Understanding how calories actually work is key - Julia Lena Morell You may have a pretty good idea of how ...

Personal Food Trainer is a relatively new Windows Phone fitness app that will help you track your daily intake of calories and macronutrients. The app will also track your water intake and weight ...

Corrections & clarifications: An earlier version of this story misspelled the name of the spokesperson for the Academy of Nutrition and Dietetics. She is Caroline Susie. Few things are as essential as ...

Add Yahoo as a preferred source to see more of our stories on Google. Few things are as essential as nutrition, yet few things can feel as nebulous. Even the question of how to lose weight, once ...