Appetune tool

Fiber Ramp Planner

Increase fiber slowly enough that your gut keeps up, with fluid alongside it and a record of what changed.

Build a fibre ramp

A weekly step, with the fluid attached to it. Slower than you will read elsewhere, on purpose — a ramp that gets abandoned in week two has done nothing.

Stop and call someone if any of this is true

These are on the list NIDDK says to seek care for right away. None of them is a fibre question, and adding fibre could delay the answer. This is above the form rather than below the result for that reason.

  • Bleeding from your rectum, or blood in your stool
  • Constant pain in your abdomen
  • You cannot pass gas
  • Vomiting
  • Fever
  • Lower back pain
  • Losing weight without trying

Fibre without fluid makes constipation worse

Fibre works by holding water. Adding it to a day with very little drinking in it is the combination that makes things worse rather than better, and it is the usual reason a ramp gets given up on. If your drinking is low, this planner spends the first week on that and holds the fibre.

Is any of this true for you, or for the person you are cooking for?
Do you have a figure for how much fibre you are getting now?

Either is fine. With a figure the schedule steps in grams; without one it steps in portions.

A rough figure. The schedule steps from wherever you are.

What you are trying to improve

Diarrhoea and bloating both change the schedule — it holds rather than stepping up.

How much you are drinking at the moment
Fibre foods you can currently face

Used to name the steps. No gram values are attached to any of them — that needs a food composition database this site does not have yet.

Which band applies, if you would like the schedule to use it

The Adequate Intake differs by age and sex. Leave it unspecified and the schedule uses the 22–34 g a day NIDDK gives for adults.

Weekly check-in

One line a week is enough to see change. It is a record, not a test — the week around it contains everything else that happened too.

Drinking
How things were

Where this is kept

Check-ins are stored in this browser and nowhere else. There is no account, nothing is uploaded, and Appetune has no copy — so clearing your browser data clears these too. Export them if they matter.

Nothing you type here leaves your device. There is no account and no server.

What this result is not

  • Not a diagnosis, and not a way to rule out a cause of constipation that needs looking at.
  • Not a personal fibre prescription. The destination is a published band, not a figure set for you.
  • Not a substitute for your care team, particularly if any of the warning signs above apply.

Where each figure comes from

Every number this tool uses is one of these. Nothing is averaged between them, and nothing is estimated where a source does not exist.

  • NIDDK — Constipation: eating, diet and nutrition

    "Depending on your age and sex, adults should get 22 to 34 grams of fiber a day." "Be sure to add fiber to your diet a little at a time so your body gets used to the change." "You should drink water and other liquids … to help the fiber work better."

    https://www.niddk.nih.gov/health-information/digestive-diseases/constipation/eating-diet-nutrition
  • NIDDK — Constipation: symptoms and causes

    Seek care right away for bleeding from the rectum, blood in the stool, constant abdominal pain, inability to pass gas, vomiting, fever, lower back pain, or losing weight without trying.

    https://www.niddk.nih.gov/health-information/digestive-diseases/constipation/symptoms-causes
  • Daley & Shreenath — The Role of Dietary Fiber in Health Promotion and Disease Prevention, StatPearls, 2025

    "Patients should be advised to gradually increase their fiber intake by 2 to 3 grams every few days, monitor their tolerance, and adjust as needed." Adequate hydration is described as essential alongside it, because water is what lets fibre move.

    https://www.ncbi.nlm.nih.gov/books/NBK559033/
  • British Dietetic Association — guidelines for the dietary management of chronic constipation in adults

    "Fibre supplement intake may be increased gradually with weekly increments to avoid adverse effects, such as bloating and flatulence." "Fibre supplements should be accompanied by additional fluid intake where clinically appropriate."

    https://pmc.ncbi.nlm.nih.gov/articles/PMC12517116/
  • Institute of Medicine — Dietary Reference Intakes, summary tables

    The protein RDA for adults is 0.8 g per kg of body weight per day. Adequate Intake for total fibre is 38 g/day for men 19–50, 30 g/day for men 51 and over, 25 g/day for women 19–50, and 21 g/day for women 51 and over.

    https://www.ncbi.nlm.nih.gov/books/NBK56068/table/summarytables.t4/
What it asks you

Where your fiber intake is now, which symptoms you are trying to improve, what you are currently drinking, and the foods you can tolerate.

What it gives back

A gradual week-by-week step, the fluid that needs to go with it, and a simple log so a pattern is visible when you next speak to a clinician.

How it works

Every figure a tool produces comes from a structured food record or a published reference, and the working is shown. If a number cannot be traced, the tool does not print it.

How we rate and calculate
Sources

What this draws on

These are the reference works this page is being written against. Specific citations are added, line by line, before it leaves draft.

Bring the output to your next appointment.

A page of specifics is a better use of ten minutes than trying to remember how the month went.