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Coach Chat

Updated February 6, 2026

This content is for informational purposes only and is not a substitute for professional advice.

Coach Chat is the interface for turning your log history into decisions. It is where you ask for a plan, pressure test a target, or translate a noisy week into the next set of actions.

Quick start

Coach Chat rewards specificity.

1. Pick a time window you are willing to judge the result on, such as the last 7 to 14 days
2. Name the constraint that makes the plan hard, such as shift work, travel, appetite, or training volume
3. Ask for a change that can be checked against the next week of data, not a generic recommendation

What Coach Chat sees

Coach Chat is grounded in the same record you see in the app.

It uses your food logs, Apple Watch activity context, and trend signals to answer questions such as what is driving a stall, why hunger spiked on certain days, or how to adjust targets without breaking adherence.

Questions that produce useful answers

Coach Chat works best when you name a time window and a constraint.

Ask for changes that can be verified. For example, request a protein target that fits your schedule, or a meal structure that makes high activity days easier to fuel without overshooting.

If you want a diagnosis, reference the pattern you observed in Timeline and ask what set of inputs could produce it.

Prompt templates

Use these as starting points, then edit the numbers and constraints so the question matches your week.

Updating targets based on trend

Over the last 14 days my weight trend is flat at ____. My average intake is about ____ kcal with ____ g protein. My training is ____ days per week.

I want ____ rate of change per week without increasing hunger too much. Propose updated calorie and macro targets, and tell me what signal would make you adjust them again.

Fixing under-fueling on high activity days

In Timeline I see that my highest active energy days are also my lowest intake days. The pattern is ____.

Give me a day structure for high activity days that keeps protein at ____ g, adds carbs earlier, and still fits my schedule of ____.

Debugging a stall that feels inconsistent

My weight trend is up this week, but my training felt better and my steps were higher. I also had ____ days with incomplete food logs.

List the most likely explanations that match this record, then tell me what to log for the next 7 days so we can separate missing data from a target that needs to move.

Building a meal structure you can repeat

I have ____ meals per day and I can prep for ____ minutes on ____ days. I want protein at ____ g per day and a plan that is easy to execute when I am busy.

Design a repeatable meal template with portion rules, and tell me what I should change on training days.

Using Coach Chat as a review editor

In my weekly review the main issue was ____.

Rewrite my plan for the next 7 days into a small set of actions I can do, and make each action measurable in my logs.

Using Coach Chat with reviews

Daily and weekly reviews are summaries. Coach Chat is the editor.

When a review highlights an issue, use Coach Chat to ask for a correction to the plan that targets the issue directly, then evaluate whether the change improved the next week of data.

Guardrails

Coach Chat is for nutrition planning and behavior level adjustments, not clinical guidance. If you have a medical concern, use professional care and treat Fuel as a tracking and planning tool.