How many calories you should eat a day depends on several variables, such as age, sex, weight, and activity level. The average moderately-active female adult needs about 1,600-2,400 calories per day.

A 500-calorie diet is an extreme form of a very low-calorie diet (VLCD). It requires you to drastically reduce the amount of food you eat, usually to a maximum of 800 calories per day.

Men typically need between 2,000 and 3,000 calories a day, according to the Dietary Guidelines for Americans. But, your ...

“Americans who eat more ultra-processed foods versus unprocessed foods can accidentally eat 500 more calories a day, both because they feel less satisfied and because they ate faster,” says ...

Cut 500 calories a day without eating less Lunch and drinks make the biggest difference. One of the easiest ways to slash calories, Prof Joseph says, is to rethink your lunch.

People on the 500-calorie diet aim to eat only 500 calories a day, which is about a quarter of the daily recommended intake for adults. The upper limit on this diet is 800 calories per day.

How many calories should I eat a day by age? Our age can affect our calorie intake more than you might think. ... and suggests a calorie deficit of 500-600 calories per day. ...

Ohio State University. (2023, December 15). US adults eat a meal's worth of calories of snacks in a day. ScienceDaily. Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2023 / 12 ...