Fiber Intake Calculator

Find your recommended daily fiber intake by age and sex, then see the gap versus what you currently eat and foods to close it.

Frequently Asked Questions

How much fiber should I eat per day?

A common guideline is about 25 grams a day for adult women and 38 grams for adult men up to age 50, or roughly 14 grams of fiber per 1,000 calories you eat. Older adults need slightly less.

What is the difference between soluble and insoluble fiber?

Soluble fiber dissolves in water and helps with cholesterol and blood sugar; insoluble fiber adds bulk and aids regularity. The daily target counts total dietary fiber from both types.

Can I get too much fiber?

Yes. Very high intakes, especially increased quickly, can cause bloating, gas, and reduced mineral absorption. Raise your intake gradually and drink plenty of water.

Is this calculator medical advice?

No. It is general information based on public dietary guidelines and is not medical advice. If you have a digestive condition, consult your doctor or a registered dietitian.

Health & Medical Disclaimer: General information only. Not medical advice.

This calculator provides general health information only and is not medical advice. Results do not replace professional medical evaluation or diagnosis. Consult a licensed healthcare provider before making health decisions. Always seek immediate medical attention for emergencies.