What are A recommended daily amount of the food groups not based on?

A recommended daily amount of the food groups is not based on:

- Personal preferences. The recommended daily amount of each food group is based on the average nutritional needs of the general population. However, individual needs may vary depending on factors such as age, activity level, and health status.

- Cultural traditions. The recommended daily amount of each food group is not based on any particular culture's traditional diet. Rather, it is based on the scientific evidence of which foods are essential for good health.

- Economic factors. The recommended daily amount of each food group is not based on how expensive or affordable the foods are. Rather, it is based on the nutritional value of the foods.