Weight fluctuation happens daily, week to week, or month to month. Learn about causes and when to see a healthcare provider about weight changes.

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, ...

Calorie deficit and intermittent fasting are weight loss strategies that involve consuming fewer calories in a 24-hour period, but they differ in their focus. Here's how.

The number of calories you need to eat to lose weight depends on several factors, including your sex, age, physical activity levels, genes, and medical history. No matter what, you need to be in a ...

Restricting eating to an 8-hour window each day without reducing calories does not result in lower metabolism or significant ...