When determining energy requirements, it is necessary to give full consideration to factors such as gender, age, weight, height, physical activity and growth and development, and it is appropriate for adults to consume about 2,000 calories a day.
According to the Chinese Nutrition Society. Dietary Nutrient Reference Intake for Chinese Residents (2013 Edition), the energy requirement for a 66kg body weight adult male aged 18-50 years old is 1500-3000kcal/d, depending on the level of physical activity. The energy requirement for a 56kg body weight adult female aged 18-50 years old is 1200-2400kcal/d.
2000 calories is an approximate average of the body’s daily dietary intake, but the body may need more or less than 2000 calories, and different heights, weights, genders, ages, and daily physical activities can affect caloric needs.
Patients should be diagnosed and treated under medical supervision to avoid delays.