Your activity level, age, height, quality of sleep, and weight all affect the exact number of calories you need. That said, ...

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 ...

New research suggests that fasting for three days a week may lead to greater weight loss than slightly reducing calories ...

A calorie deficit means consuming fewer calories than your body needs to maintain its current weight. If you’re in a calorie deficit but not losing weight, it could be because of stress, health ...

Many Americans set goals to lose weight, exercise more and eat a better diet. According to a YouGov poll, these are among the most popular New Year’s resolutions for 2026. The poll found that 25% of ...

Everyday Health’s weight loss calculator can help you estimate your calorie needs for weight loss. Learn more about how many calories you need and how they are estimated.

If you’re on a weight loss journey while also trying to gain muscle, you may be wondering if you can build muscle in a calorie deficit. It may seem like the two concepts contradict one ...

Lauren O’Connor, MS, RDN, is a health and lifestyle writer and five-time cookbook author based in Los Angeles. She is a registered dietitian with over 15 years of experience in the field, specializing ...

Excess belly fat poses serious health risks beyond cosmetic concerns, significantly increasing chances of heart disease and diabetes. While spot reduction isn’t possible, combining strategic exercise ...

Change one: I stayed in a calorie deficit. You have to be in a calorie deficit to lose weight. There are some things that make that more attainable (intermittent fasting, for instance, because youre ...

Choose the activity you love the most, and focus less on the calories and more on how much better you feel after your workout ...