Gut Health Habit Score
No test turns your digestion or gut bacteria into an "age". This page does not estimate one. It counts eating and activity habits linked with digestive health. The NHS recommends adults aim for 30 g of fibre a day.
Before you start
Method : Gut Health Habit Score — a custom points score written by this site. Each answer adds or subtracts the points shown in the Methodology table below.
Validation : Unvalidated. The points have never been tested against any laboratory measurement or health outcome, and the result is not an age.
Review : not reviewed by a qualified clinician. Educational only — not a diagnosis or a medical test.
Blood in your poo, a lasting change in bowel habits, unexplained weight loss or tummy pain should be checked by a doctor (NHS bowel cancer symptoms).
Your answers stay in this browser tab; nothing is sent or stored.
Answer the questions, then press Calculate score.
How to Use This Calculator
- Answer each question.
- Press Calculate score.
- Read the breakdown and suggestions.
Methodology & assumptions
Your score is the sum of the points below. The weights are our own judgement. The old version added years for probiotics, bloating, food sensitivities and antibiotics and gave a "gut age". Symptoms like bloating or bowel changes need a doctor, not a score, so they moved to the note beside the questions.
| Factor | Answer | Points |
|---|---|---|
| Fibre (vegetables, fruit, whole grains, beans, nuts) | With most meals | 0 |
| Some days | +1 | |
| Rarely | +2 | |
| Ultra-processed food and drinks | Rarely | 0 |
| Some days | +1 | |
| Most meals | +2 | |
| Different plant foods in a typical week | 20 or more | 0 |
| 10–19 | 0 | |
| Under 10 | +1 | |
| Drinks during the day | Enough that I'm rarely thirsty | 0 |
| Often thirsty or dark urine | +1 | |
| Physical activity | 3+ days a week | 0 |
| 1–2 days a week | 0 | |
| Little or none | +1 |
Worked examples
Rarely eats fibre, ultra-processed food at most meals, under 10 plant foods a week, often thirsty, little activity: 2 + 2 + 1 + 1 + 1 = +7 points.
Fibre with most meals, rarely ultra-processed, 20+ plants, rarely thirsty, active: 0 points.
Understanding your result
This counts eating and activity habits you reported. It is not a digestive or microbiome measurement and not an age. Health-agency guidance linked below is general and based on populations, not on this score.
Sources & further reading
The points table is our own convention and is not taken from these sources.
Frequently Asked Questions
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