One quick online search or scroll through social media and you'll find an endless amount of weight loss advice. But it's hard to know what's backed by science and what's a waste of your time—or worse, ...

Many factors affect the speed at which a person loses weight, including weight loss method, age, genetics, and more. Aim for gradual weight loss of 1 to 2 pounds per week, or 5% to 10% body weight ...