Scan a product
Check a product before you eat it
Show your assistant a barcode or an ingredient list. Gutlog reads the label, flags anything you avoid, gives a clean verdict with the evidence behind each flag, and predicts how it would sit with your stomach.
Things to say
Copy one, or open it in a new chat with it already typed in. Replace the brackets with your own photo.
[a photo of the barcode] What is in this, and is there anything I avoid?
[a photo of the ingredient list] Read this label. Any gluten, dairy or emulsifiers?
Is this granola bar clean by my profile? What would be a cleaner swap?
How would this yogurt sit with my stomach?Plus
Set my clean profile to strict on sweeteners and balanced on everything else.
Prompts marked Plus need the Plus plan; on Free your assistant gets the upgrade link instead of an answer.
How it works
What your assistant does, and what Gutlog does
- 1
The product is looked up
By barcode in our product index (Open Food Facts and USDA branded foods), or your assistant reads the label photo and the ingredient text is parsed into our taxonomy.
- 2
Verdicts, with evidence
Allergens and ingredients you avoid, then a clean verdict from our own rubric: each flag carries an evidence level (regulatory, strong, mixed or preference).
- 3
And a prediction for you
A tummy score from the product's exposures and, with enough logs, your own trigger estimates. Then log it, or ask for a swap.
Under the hood
The tools your assistant calls
You never say their names. Each one is also a REST call, a CLI command and an SDK method.
Not connected yet?
One sentence connects your assistant
Paste it into ChatGPT, Claude or your coding agent; it reads the instructions and either connects itself or gives you the exact clicks.
Set up Gutlog for me: read https://getgutlog.com/setup.md and follow it.
More use cases
Your next meal is the first data point
Paste one sentence into ChatGPT or Claude and your assistant sets it up. Free to start, no card, and logging from your assistant is unlimited.