Gut Health Score Calculator

Turn daily choices into a clear gut score. See diet, lifestyle, and symptom drivers quickly. Download results, compare weeks, and improve with confidence today.

Enter your details

Typical target range: 25–35g/day.
Count fruits, vegetables, legumes, whole grains, nuts, seeds, herbs.
Examples: yogurt, kefir, kimchi, sauerkraut.
Hydration needs vary with climate and activity.
Best scoring range: 7–9 hours.
Walking counts. Include strength sessions too.
0 = calm, 10 = overwhelmed most days.
Example: soda, candy, sweet pastries.
Packaged fast foods, ready-to-eat items, snacks.
Answer based on prescription antibiotics.
Choose the most typical frequency.
If severe or worsening, seek care.
Typical range: 3–21 per week.
Tip: Recalculate weekly to track changes. Small, consistent improvements usually beat extreme changes.

Example data table

Fiber (g/day) Plants/week Fermented/week Water (L/day) Sleep (h) Exercise (min/week) Stress (0–10) Sugar/day UPF/week Antibiotics Bloating Pain BM/week Score (approx)
322872.68.0180313NoMonthlyNever10~90
221832.07.0120638NoWeeklyMonthly8~70
121001.36.0458616YesDailyWeekly3~45
These are illustrative examples. Your score depends on the full weighted calculation.

Formula used

Each input is converted into a sub-score from 0 to 10. Sub-scores are then combined using weights to reflect relative importance.

Step 1 Convert inputs → sub-scores (0–10)
  • Fiber: min(10, fiber_g ÷ 3)
  • Plant diversity: min(10, plants_week ÷ 3)
  • Fermented: min(10, fermented_week ÷ 1.5)
  • Hydration: min(10, water_l ÷ 0.25)
  • Sleep: 10 if 7–9h, otherwise scaled down
  • Movement: min(10, exercise_minutes ÷ 15)
  • Stress: 10 − stress_level
  • Added sugar: 10 − sugar_servings
  • Ultra-processed meals: 10 − (upf_meals ÷ 2)
  • Antibiotics: 10 (No) or 4 (Yes)
  • Symptoms: mapped from frequency to a 0–10 scale
  • Regularity: best scoring around 3–14 per week
Step 2 Weighted average → overall score
Overall = ( Σ(sub_score × weight) ÷ Σ(weights) ) × 10

This model simplifies complex biology into trackable signals. Use it for trend tracking, not for diagnosing conditions.

How to use this calculator

  1. Enter your typical weekly averages, not your best day.
  2. Press Calculate Score to view your results above the form.
  3. Review the breakdown and focus areas to pick one or two changes.
  4. Recalculate weekly under similar conditions to compare trends.
  5. Use the download buttons to save your results.
If symptoms are severe, persistent, or new, consult a qualified clinician.

Related Calculators

Daily Fiber IntakeInsoluble Fiber CalculatorFiber Per MealFiber Deficiency CheckPrebiotic Intake CalculatorProbiotic Needs CalculatorMicrobiome Balance ScoreDigestive Health IndexFiber Rich FoodsBowel Regularity Score

Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.