In nutrition, AI means proper intake, so what does PI mean?

PI is the recommended daily intake to prevent non-communicable chronic diseases. In order to suggest a reference value, it can be adjusted according to personal needs and health status. In some cases, PI can be regarded as a guiding principle, which can help people choose an appropriate diet pattern to prevent some chronic diseases, such as cardiovascular diseases, diabetes and some cancers.

In addition, according to different data sources, the PI value may be different. For example, according to the PI value of adults in DRIs20 13, the recommended daily intake of potassium is 3600mg/d (lower limit), sodium is 2000mg/d (upper limit) and vitamin C is 200mg/d (lower limit). These PI values are recognized by researchers and experts, and are determined according to an individual's age, gender, weight, physical condition and activity level.

It should be noted that the PI value is not applicable to all individuals, because everyone's nutritional needs and health status are different. Therefore, it is best to determine the specific diet plan according to personal needs and doctor's advice.