Your fitness tracker may be flooding you with data, but when it comes to knowing your caloric output, you need to keep in mind very few things. And how you manage it will dictate your fitness levels ...

With so much talk about how to lose weight, it’s easy to forget that there are people who want to gain weight by building lean muscle mass, or “bulking.” To do this, you need to consume more calories ...

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 ...

There's a right—and wrong—way to follow one.

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 ...

Knowing how much to eat not only guides calorie intake, but it can help balance the right combination of foods and nutrients that your body needs. Portion control helps ensure that your daily diet ...

This article was reviewed by Craig Primack, MD, FACP, FAAP, FOMA. You’ve heard the saying “calories in versus calories out” when it comes to weight loss. This is referring to a calorie deficit. But ...

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"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you’re trying to lose weight, it’s natural to want an efficient solution. During your search for the ...