How to Track Baby Food Reactions in a Diary (Without Losing the Thread)

2026-09-02

The first time something looked off after a meal, I stood in the kitchen trying to remember what had actually happened three days earlier. I had a vague memory of a new food, a photo of a bowl somewhere in my camera roll, and absolutely no idea which day it was. That was the moment I started writing things down properly.

This article is about the record, not the reaction itself. What a rash or a change in behaviour means is a question for your pediatrician — they'll ask questions, and your job is to have answers that aren't guesses. Here's how to keep notes that actually hold up.

Separate the two things you're recording

A feeding diary has two kinds of entries, and mixing them is what makes old notes useless:

1. The exposure — this food, on this day, in this form.
2. The observation — what you noticed, and when you noticed it.

Keep them distinct. An entry that says "carrot — fine" collapses both into one word and tells you nothing later. An entry that says "carrot, steamed, mashed, dinner" plus a separate note "nothing unusual through the evening or overnight" is a record you can actually read back.

The reason matters: reactions and meals don't line up neatly. Something you notice on Thursday afternoon may relate to a meal you'd already stopped thinking about. If exposures and observations are logged separately with their own timestamps, you can lay them side by side. If they're fused into one sentence, you can't.

What to write in the observation

Write what you saw, not what you concluded. This is the single biggest improvement you can make to your notes.

Useful:

• What you noticed, in plain physical description — skin, stool, sleep, mood, appetite, anything you'd point at.
• Where on the body, if it's visible.
• When it started, as precisely as you can manage. "Late afternoon" beats nothing; a clock time is better.
• How long it lasted, and whether it changed over time.
• What else was going on that day — a cold coming on, a new laundry detergent, teething, a day at grandma's, a nap that never happened.

That last bullet is the one parents skip and pediatricians love. Your notes get much more valuable when they include the other possible explanations, because it saves everyone from anchoring on food when food might not be the story.

Less useful: "reacted to the pear." That's a conclusion wearing the costume of an observation. Six weeks later you won't remember what you actually saw, only that you decided it was the pear — and you may have decided wrong.

Word it so you understand it in November

A few habits that made my own notes readable months later:

• Be boring and consistent. If you write "nothing unusual" once, write "nothing unusual" every time. Consistent phrasing means you can search for it.
• Use the same words for the same things. Pick one term for a given observation and stick with it, instead of drifting between three synonyms.
• Note the form, not just the food. Steamed and mashed versus raw and grated versus baked into something — those are different entries in a record, even if the ingredient is the same word.
• Log the boring days too. A diary with only the eventful entries makes everything look eventful. The uneventful entries are what give the interesting ones context.
• Timestamp honestly. If you're writing at 9pm about something you noticed at 3pm, say so. "Noticed around 3, writing this now" is a more trustworthy note than a fake precise time.

Where to keep it

Whatever you'll actually reach for one-handed. Paper on the fridge works, and has the advantage that a grandparent can use it without instructions — but it doesn't search, and it gets sauce on it. The notes app on your phone is always there, but a single long note becomes unreadable fast, and if you start a new note per day you'll never find anything again.

I ended up wanting three specific things: a date attached automatically, one entry per food rather than per day, and reactions stored as their own thing so I could scan back through them. That's what Pudding does — it's free, works offline with no account, so the whole history just lives on the phone and there's nothing to log into at 6am. Any tool with those properties will do the job; the properties are the point.

Reading it back before an appointment

When you do take your notes to a pediatrician, don't hand over the whole thing. The night before, write out on one page:

• The observation itself, in your own plain words, with dates and times.
• Whether it happened once or more than once.
• What was eaten in the day or so beforehand, copied straight from your log rather than from memory.
• The other things going on that week.
• Your actual questions, written down, because you will forget them.

That's a summary a clinician can work with in the ten minutes you've got. Everything else stays in the diary as backup, in case they want to look further.

One last thing: a diary's job is to remember, not to interpret. Resist the urge to draw conclusions in the margins. Record clearly, ask your pediatrician what it means, and let the notes be notes.