There is no single recommended intake of inulin FOS that applies to all adults and children, as individual needs may vary depending on factors such as age, gender, body weight, and health status.

However, the Academy of Nutrition and Dietetics and the American Gastroenterological Association recommend a daily intake of at least 25-38 grams of dietary fiber for adults, with some sources recommending even higher amounts. Children’s fiber needs vary depending on their age and gender, with recommendations ranging from 19-31 grams per day for children between the ages of 1-18 years.

When it comes to inulin FOS specifically, many studies have used doses ranging from 5-20 grams per day to achieve prebiotic effects, although some studies have used higher doses. It’s important to note that consuming too much inulin FOS can cause digestive discomfort such as bloating, gas, and diarrhea, especially in individuals who are not used to consuming high amounts of dietary fiber.

Therefore, it is recommended to start with a lower dose of inulin FOS (e.g., 2-5 grams per day) and gradually increase intake over time to allow the body to adapt to the increased fiber intake. As always, it’s important to consult with a healthcare professional before making any significant changes to your diet or supplement regimen.