Enter Daily Intake Inputs
Use your own target, food servings, fiber intake, and supplement grams. Results appear above this form after calculation.
Example Data Table
| Item | Example Quantity | Estimator Factor | Estimated Contribution |
|---|---|---|---|
| Garlic | 2 cloves | 0.60 g per clove | 1.20 g |
| Onion | 1 serving | 1.30 g per serving | 1.30 g |
| Beans or legumes | 1.5 servings | 2.20 g per serving | 3.30 g |
| Cooked oats | 1 cup | 0.80 g per cup | 0.80 g |
| Supplement | 3 g | Direct input | 3.00 g |
| Fiber support | 28 g fiber at 35% | Fiber × Share × 0.50 | 4.90 g |
Formula Used
Food Estimate = Σ (Food Quantity × Estimator Factor)
Fiber Support = Total Fiber × (Fermentable Share ÷ 100) × 0.50
Total Intake = Food Estimate + Supplement Input + Fiber Support
Percent of Target = (Total Intake ÷ Target) × 100
The serving factors are planning coefficients for common prebiotic-rich foods. They are useful for comparison, habit tracking, and meal planning, not laboratory measurement.
How to Use This Calculator
- Set your daily target in grams.
- Enter your total fiber intake for the day.
- Choose the fermentable share that fits your diet estimate.
- Add grams from any prebiotic supplement you use.
- Enter servings for the listed foods you consumed.
- Press Calculate Intake to view totals above the form.
- Review the summary, chart, and food breakdown.
- Use CSV or PDF export for records or meal tracking.
FAQs
1) What does this calculator estimate?
It estimates daily prebiotic intake from selected foods, optional supplements, and a supportive share of fermentable fiber. It helps compare intake against a personal target.
2) Is this a medical tool?
No. It is a nutrition planning estimator. It does not diagnose gut conditions, replace dietetic care, or predict tolerance for everyone.
3) Why include total fiber?
Some dietary fiber is fermentable and can support beneficial gut microbes. The fiber section adds a practical estimate beyond the named foods.
4) What is the fermentable share field?
It is your estimate of how much of total fiber acts like fermentable substrate. A moderate value gives a conservative planning number.
5) Why might higher intake feel uncomfortable?
Rapid increases in fermentable foods or supplements can cause bloating or gas in some people. Gradual changes are often easier to tolerate.
6) Can I use only food entries and ignore supplements?
Yes. Leave supplement grams at zero. The calculator will still total food-based intake and fiber support.
7) Is the target fixed for everyone?
No. Targets vary by goal, tolerance, food pattern, and professional advice. This tool lets you set a target that matches your plan.
8) What should I do with the chart?
Use it to see whether food, supplement, or fiber support drives your total most. That makes meal adjustments easier and more precise.