About HowMuchFiber
HowMuchFiber.com is a free, science-based tool that helps you understand and meet your daily fiber needs. We believe something as fundamental as "how much fiber should I eat?" shouldn't require a doctor's visit or a nutrition degree to answer.
Our Data Sources
All fiber recommendations on this site come from official, peer-reviewed sources:
- USDA Dietary Guidelines for Americans, 2020-2025 — for daily intake recommendations by age and sex
- USDA FoodData Central — for fiber content of individual foods
- Institute of Medicine Dietary Reference Intakes (DRIs) — for the 14g per 1,000 calories formula
Medical Disclaimer
The information provided on HowMuchFiber.com is for educational and informational purposes only. It is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or qualified health provider with any questions regarding a medical condition or dietary changes.
If you have a digestive condition (IBS, Crohn's, diverticulitis), are on medication, or have specific medical concerns, consult your healthcare provider before significantly changing your fiber intake.
Contact
Have questions, corrections, or suggestions? We'd love to hear from you. Email us at hello@howmuchfiber.com.