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How To Lose Weight By Cutting Calories
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Starvation is not the answer to weight loss and can even cause you to gain weight cautions the uks national health service.
How many calories human body needs in a day. The average woman needs to eat about 2000 calories per day to maintain her weight and 1500 calories per day to lose one pound of weight per week. Estimated calorie needs per day by age sex and physical activity level. The number of calories the body consumes in a day is different for every person. Instead if you want to lose weight take in at least 1200 calories a day if youre female and 1500 calories a day if youre male and focus on a healthy weight loss plan.
Eating 1000 calories per day or less is the same as total starvation according to ucla health. One of the most reliable methods in calculating calories burned during physical activity is the metabolic energy met method. You may notice on the nutritional labels of the foods you buy that the percent daily values are based on a 2000 calorie diet 2000 calories is a rough average of what people eat in a day. Physical activity has a profound effect on human energy expenditure and contributes 20 30 to the bodys total energy output.
Without energy the cells in the body would die the heart and lungs would stop and the organs would not be able to carry out the basic processes needed. The total number of calories a person needs each day varies depending on a number of factors including the persons age sex height weight and level of physical activity. Many people choose to reduce their calorie intake. The human body needs calories to survive.
The 2015 2020 dietary guidelines for americans recommend a calorie intake that ranges from 1000 calories a day for an infant of 2 years to 3200 for an active male aged 16 to 18 years. Height weight gender age and activity level all affect your caloric. There is no ideal minimum calories per day to lose weight or minimum calorie intake for a teenage girl teen boy or adult. It is important to remember that proper diet and exercise is largely accepted as the best way to lose weight.
If youre trying to lose weight you need to cut 500 calories a day to lose 1 pound of body weight a week. For example if a person has an estimated allotment of 2500 calories per day to maintain body weight consuming 2000 calories per day for one week would theoretically result in 3500 calories or 1 pound lost during the period. Meanwhile the average man needs 2500 calories.