FastOS

Build your personal fasting prompt.

Your body is not a generic machine. Your fasting method should not be generic either. FastOS helps you create a prompt based on your real life, your food environment, your discipline level, and your goals.

Create My Prompt Read FastOS Method

Practical operating system

Fasting, food, discipline, and ancestral health - adapted to your actual life.

Better questions

This is not a diet calculator.

FastOS does not give you a magic meal plan. It helps you ask better questions. It gives your favorite AI the context it needs to guide you with ancestral wisdom, carnivore discipline, and fasting freedom.

The FastOS Method is the source code. This generator is the command file.

Fill the form, generate your prompt, copy it, and paste it into your favorite AI: ChatGPT, Claude, Gemini, Grok, or any tool you like.

If your AI cannot access the method page, use this plain text version: /fastos-method.txt

Step 1

Fill the form

Step 2

Generate your prompt

Step 3

Copy it

Step 4

Paste it into your favorite AI

Prompt Builder Form

Tell FastOS what life really looks like.

0 answers filled

Module A

About You

Name or nickname

Age range

Country / region

Typical daily schedule

Choose all that apply, then add anything missing in Other.

Other schedule details

Fish

Module B

Current Food Reality

What do you currently eat most often?

Choose all that apply, then add anything missing in Other.

Other foods you eat often

What foods create the most cravings or problems for you?

Choose all that apply, then add anything missing in Other.

Other craving/problem foods

Food environment

Hour

Module C

Fasting Experience

Current fasting level

Do you rely mostly on willpower?

Peak

Module D

Goals

Main goal

What do you want fasting to give you?

Choose all that apply, then add anything missing in Other.

Other fasting goals

What do you want to stop being controlled by?

Choose all that apply, then add anything missing in Other.

Other things controlling you

Shield

Module E

Constraints

Medical / safety note

Choose any caution notes that apply. This is not diagnosis or medical advice.

Other medical or safety note

Lifestyle constraints

Choose all that apply, then add anything missing in Other.

Other lifestyle constraints

Map

Module F

Desired Style

How should the AI guide you?

Preferred fasting approach

Your FastOS Prompt will appear here.

Everything happens locally in your browser. No login, no API, no stored answers.

AI Verification Links

FastOS Method AI-readable Method Markdown Method Plain Text Method Prompt Template Sample Generated Prompt