# Track nutrition and fitness with OpenAI and Google Sheets: n8n workflow

> Started by another system calling it, and works across Google Sheets and Slack. It hands the judgement calls to OpenAI.

Source: https://millionrounds.com/workflow/track-nutrition-and-fitness-with-openai-and-google-sheets (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Alerts and monitoring](https://millionrounds.com/workflows?category=Alerts+and+monitoring#library)

# Track nutrition and fitness with OpenAI and Google Sheets

Started by another system calling it, and works across Google Sheets and Slack. It hands the judgement calls to OpenAI. 17 steps, 4 branches: a working afternoon to understand properly.

Medium Calls a model: OpenAI

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Ftrack-nutrition-and-fitness-with-openai-and-google-sheets)

**17 steps** Medium: a working afternoon

**4** Branches: places the flow splits

**0** Loops or waits

**2** Services it connects to

## The flow

Starts it 3 Model 2 Logic 5 Service 7

The steps in the order they run, from what starts it.

- 1 **Receive User Input** Webhook *Starts it*
- 2 **AI Model (GPT)** Lm Chat Open Ai *Model*
- 3 **Daily Reset Trigger** Schedule trigger *Starts it*
- 4 **Fetch User Data** Google Sheets *Service*
- 5 **AI Nutrition Analyzer** Agent *Model*
- 6 **Fetch All Users** Google Sheets *Service*
- 7 **Validate User Exists** If *Logic*
- 8 **Process Nutrition Data** Code *Logic*
- 9 **Reset Daily Stats** Google Sheets *Service*
- 10 **Check Calorie Threshold** If *Logic*
- 11 **Alert: Calorie Limit Exceeded** Slack *Service*
- 12 **Check Health Risk** If *Logic*
- 13 **Alert: Health Risk** Slack *Service*
- 14 **Check Critical Risk** If *Logic*
- 15 **Alert: Critical Health Issue** Slack *Service*
- 16 **Send API Response** Respond To Webhook *Starts it*
- 17 **Update User Data** Google Sheets *Service*

## How it's built

- **Starts on:** Another system calling it
- **Steps:** 17, with 4 branches
- **Size:** Medium: a working afternoon
- **Connects to:** Google Sheets, Slack
- **Model:** OpenAI

## Questions

What does it need to run?

An n8n account, plus your own Google Sheets and Slack accounts, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on another system calling it.

Does it use AI?

Yes. It calls OpenAI. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 17 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 17 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Ftrack-nutrition-and-fitness-with-openai-and-google-sheets)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Google Sheets](https://millionrounds.com/workflows?service=Google+Sheets#library)[Slack](https://millionrounds.com/workflows?service=Slack#library)

## Workflows like it

Also alerts and monitoring, with the same services where possible, closest in size first.

- [**AI Qwen-Vl-Plus powered car fleet maintenance alert system** 17 steps · calls a model · Postgres, Slack](https://millionrounds.com/workflow/ai-qwen-vl-plus-powered-car-fleet-maintenance-alert-system)
- [**Automate investment risk monitoring with Qwen-Max AI and Slack** 17 steps · calls a model · Gmail, Slack](https://millionrounds.com/workflow/automate-investment-risk-monitoring-with-qwen-max-ai-and-sla)
- [**Automated stock technical analysis with Grok and Gmail** 17 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/automated-stock-technical-analysis-with-grok-and-gmail)
- [**Classify supplier tiers with Google Sheets and Groq** 17 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/classify-supplier-tiers-with-google-sheets-and-groq)
- [**Classify workflow errors with Claude and Slack** 17 steps · calls a model · Jira, Slack](https://millionrounds.com/workflow/classify-workflow-errors-with-claude-and-slack)
- [**Competitor intelligence agent: SERP monitoring + summary** 17 steps · calls a model · Google Sheets](https://millionrounds.com/workflow/competitor-intelligence-agent-serp-monitoring-summary)