How much protein should be consumed in a day is affected by age, gender, physical state and other factors, with the increase of age (14~17 years old reaches the peak), its protein reference intake gradually increases, taking adult adults as an example, the reference intake of protein in a day for adult males is 65g.
According to the Dietary Nutrient Reference Intake Table for Chinese Residents, it can be seen that the Reference Nutrient Intake (RNI) for protein increases with age, for example, for infants aged 0-6 months (the same for both males and females), and then it increases with age, and then at the age of 14-17 years old, the RNI is 75g/d (for males), and the RNI is 60g/d (for females), and then it decreases to the level of adults.
RNI is also related to gender, with adult males having an RNI of 65 g/d and adult females having an RNI of 55 g/d.
RNI is also associated with physical status, such as pregnant women, whose RNI increases as the weeks of pregnancy increase.