Fibre Target Calculator
Most adults in the United States fall well short of their fibre target. The adequate intake is set at 14 g per 1,000 kcal, which works out to the familiar numbers by age and sex.
How this is calculated
- Adequate intake: 14 g of fibre per 1,000 kcal. At 2,000 kcal that is 28 g a day.
- The commonly quoted gendered targets are 38 g a day for men under 50 and 30 g over 50, and 25 g for women under 50 and 21 g over 50.
- Increase fibre gradually and drink more fluid. A large sudden increase causes bloating for most people.
Read the guide
The content on this site is for general educational purposes and reflects widely published public health guidance. It is not a substitute for professional medical advice, diagnosis, or treatment. Always talk with a qualified healthcare provider before changing your diet, starting a supplement, or making a major dietary change, especially if you have a medical condition.