How your plan is actually made

1. Your targets are calculated, not guessed

Your energy needs are estimated with the Mifflin-St Jeor equation from your height, weight, age and how active you are, which is the same equation used in clinical practice. Your protein target is set from your bodyweight. None of it is decided by a language model, and none of it varies between two people who gave the same answers.

2. Safety floors the system cannot go below

These are enforced in the code that builds your plan, not written as instructions to something that might ignore them:

• Never below 1200 calories a day, for anyone, for any reason.
• Never below 90% of your estimated basal metabolic rate.
• Never a daily deficit larger than 500 calories.
• Never a rate of loss above 0.75% of your bodyweight a week.
• Never below 0.54g of protein per pound you weigh.

If your answers would produce something below one of these, the number is raised to the floor and the fact that it happened is recorded against your plan.

3. The food comes from a fixed library

There are 373 recipes, each written out in advance, and 328 ingredients with their nutritional composition taken from published food composition tables. Every calorie and gram of protein in your plan is added up from those figures. Nothing invents a number.

Your plan is assembled by choosing from that library to hit your targets, working around your allergies, what you won’t eat, how much time you have, and what you can face eating.

4. Everything it says about nutrition is quoted

The explanations in your plan are drawn from a fixed set of 88 pieces of reference material, each with its source attached, which you can see on the plan itself. The system selects which ones are relevant to you. It does not write new claims, and it cannot say something the reference material doesn’t.

5. Every plan is checked before you see it

Before a plan reaches you, it is checked automatically: every day within 7% of your energy target, every day meeting your protein target, no day below the floors, and nothing containing anything you told us you can’t eat. A plan that fails any of those checks is rebuilt. If it still fails, you get told and offered your money back. You never get shown it.

6. What it can’t do

All of that happens without a clinician in the loop: the checks above are the review, and no qualified professional reads your plan before or after you get it. It is general nutrition information, built well and shown its working, but it doesn’t know your history, your bloods, or anything you didn’t tell it, so it can’t replace the person who does. If you’re managing a diagnosed condition or taking medication, take your plan to them.