Free · nothing to sign up for
Chart fourteen days and look at your own numbers.
You don't have to believe anything I've said. Score two weeks, lay them against your cycle days, and see whether your bad days cluster or scatter.
If they don't cluster, this isn't your mechanism and I'll tell you so. That is a real outcome and it costs you nothing.
The exercise
Ninety seconds a day, for fourteen days.
Score your fortnight
One tap per day: how was your gut that day? Nothing is stored or sent anywhere — this runs entirely in your browser.
- Day 1cycle day 15
- Day 2cycle day 16
- Day 3cycle day 17
- Day 4cycle day 18
- Day 5cycle day 19
- Day 6cycle day 20
- Day 7cycle day 21
- Day 8cycle day 22 · in window
- Day 9cycle day 23 · in window
- Day 10cycle day 24 · in window
- Day 11cycle day 25 · in window
- Day 12cycle day 26 · in window
- Day 13cycle day 27 · in window
- Day 14cycle day 28 · in window
Your Cycle Overlay Chart
0 of 14 days plotted against a 28-day cycle
The read · Keep going
0 of 14 days logged.
Eight days is the least that can say anything at all, and fourteen is what the guide asks for. Ninety seconds a day.
There is no wrong answer to record here. A run of quiet days is data too — it is the contrast that makes a pattern visible.
Pattern-spotting only. This is not a diagnosis, not a food conclusion, and not a statement about your hormones — it tells you when a food result can be trusted.
How to score it
Three rules, and the third one is the hard one.
This is the same instrument the twelve weeks run on. The only difference is that in the program someone reads it with you.
01
Score the day, not the meal
One number for how your gut was, start to finish. Don't try to attribute it to anything yet — attribution is the thing that has been going wrong.
02
Write the cycle day beside it
Cycle day 1 is the first day of your period. This is the column nobody has ever asked you to keep, and it is the whole difference.
03
Look at fourteen days, not three
A fortnight is the shortest window that can show clustering at all. Two full cycles is what actually settles it — this is the look, not the verdict.
And then what
A chart is not a plan. It's the condition a plan needs.
Knowing which weeks your readings can be trusted in doesn't tell you which foods are yours. It tells you when a food test is worth running — which is the step every protocol you've tried skipped.
If the pattern is there and you want it read properly, the fit call is twenty minutes and free. If it isn't there, take the chart to your own physician instead — it's a far better thing to hand over than a memory of a bad month.