Being in a calorie deficit can be an effective way to diet but it's not a long-term solution. Benefits include weight loss, improved cardiovascular health, and reduced risk of chronic disease. But ...

If you've been following a low-calorie diet and splurged one day, you may be surprised to find that you didn't gain any weight. Some dieters do this on purpose. This is often called calorie cycling or ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. If you want to start ...

If you’ve ever tried to lose weight, you’ve probably heard about the importance of “calories in versus calories out.” This concept is based on the idea that as long as you eat fewer calories than you ...

Physical fitness does not need to be an exact science. But you could be working out smarter—not necessarily harder—to maximize benefits. So what is the minimal amount of calories you need to burn ...