Daily Food & Calorie Diary

Four meals, water, totals

A date at the top. Then four sections — breakfast, lunch, dinner, snacks — each with ruled lines and a calories column running down the right. Eight droplets to tick for water. A totals box at the foot.

Both the calorie column and the water row can be switched off, which turns the sheet into a plain food journal.

Writing it down changes what you eat

This is one of the better-established findings in the area, and it does not depend on counting anything.

The act of recording introduces a pause before eating, and the pause is where the effect lives. People who keep food diaries eat somewhat differently from people who intend to eat differently, and the sheet does not have to be shown to anyone for that to hold.

It also fails in a specific way: unrecorded days. A diary kept on the good days and abandoned on the bad ones is worse than none, because it tells you a flattering story you will believe.

The snacks section is the honest one

It has its own section rather than being folded into meals, deliberately.

Most people can recount their three meals accurately and lose everything else — the biscuit with coffee, the handful from a colleague's desk, what was finished off a child's plate. That is often where the real difference between two people's days sits, and it is invisible unless there is a line for it.

Calories, if you want them

The column is optional because the sheet works either way.

Counting adds precision. It also adds friction, and for some people a preoccupation that does no good at all. Leave it off and you still get the pattern, which for most purposes was the useful part. Use it and treat the numbers as approximate: packet figures carry real tolerances, and portions estimated by eye are commonly out by a quarter.

The water row

Eight droplets, one per glass. It is a rough target rather than a medical requirement — needs vary with body size, with activity, with the weather, and a good deal of your intake arrives through food and other drinks anyway.

Ticking a box is nevertheless an effective reminder, and dehydration is a common and easily fixed cause of an afternoon slump.

A note

This is a journal, not clinical advice. If you are managing a condition, an allergy or a prescribed diet, keep it alongside your dietitian or doctor rather than instead of them — and if food tracking is something that has caused you difficulty in the past, this may not be the right tool for you.