Calories are the energy in food and beverages, allowing you to move, breathe, and survive. The number of calories a person needs per day varies depending on several factors, such as age, height, ...

A calorie deficit is necessary to lose weight, which you can achieve by eating less or exercising more. The Mifflin St. Jeor equation estimates how many calories your body needs to function at rest.

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 ...

Intuitive eating and calorie counting are methods used to reach and maintain a desired weight. Either can be effective, but the better method depends on the person, their reasons for not already being ...

If you're a 200-pound man, the amount of calories you need to consume each day depends on a variety of factors. Your sex, age, weight, height, and activity level can all affect your calorie intake.

Intermittent fasting and calorie deficits can both be used for weight management and fat loss—in most cases, the most effective eating plan is one you're able to adhere to long term.

From liquid calories to low protein and long sit times, experts break down what quietly erases your calorie deficit and how ...

Can you build muscle while you are eating fewer calories to lose fat and excess weight? Learn what may help meet your goals.

People who switch to a fully unprocessed diet don’t just eat differently—they eat smarter. Research from the University of ...