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Frequently Asked Questions

Instantly calculate your BMI and understand what the result means — and what it doesn’t — for your health.

About Fettle

Using the app

Nutrition, Calories & Macros

Progress & Plateaus

Meals, Planning & Shopping

Calculators (BMI, TDEE & Protein)

Pricing & Access

Privacy & Data

Medical & Clinical Boundaries

Support & Getting Help

Others

About Fettle

What's Fettle is, who's it for, and how it's different from traditional nutrition apps.

What is Fettle?

Is Fettle just a calorie tracking app?

How is Fettle different from other nutrition apps?

How is Fettle different from MyFitnessPal or similar apps?

Is Fettle based on science or trends?

Who is Fettle designed for?

Using the app

How Fettle works day to day - from onboarding to tracking, goals, and ongoing use.

How does Fettle personalise my nutrition?

How often does Fettle update my targets?

Do I need to log everything perfectly?

Can beginners use Fettle?

Nutrition, Calories & Macros

How Fettle calculates calories and macros, and why adaptive targets matter more than perfect numbers.

How does Fettle calculate my calories and macros?

Why does Fettle focus on macros, not just calories?

How are protein targets calculated?

Can Fettle work with low-carb, high-protein, or balanced approaches?

Progress & Plateaus

Why progress naturally slows over time, how plateaus happen, and how Fettle helps you respond intelligently

Why doesn’t Fettle react to daily weight changes?

What happens if my progress stalls?

Does Fettle support long-term weight maintenance?

Meals, Planning & Shopping

How Fettle support real-life eating and flexible meal planning, swaps, and shopping tools.

Does Fettle provide meal plans?

Can I swap meals or ingredients?

Does Fettle support grocery shopping?

Calculators (BMI, TDEE & Protein)

How our free calculators work, what they're useful for, and where their limitations are.

Are Fettle’s calculators free to use?

How accurate is the BMI calculator?

How does the TDEE calculator work?

Does the protein calculator change inside the app?

Pricing and Access

What Fettle costs today, what's included in the beta, and how pricing may evolve over time

Is Fettle free to use?

Is there a paid version of Fettle?

Can I cancel anytime?

Privacy and Data

How your data is handled, what's anonymised, and the steps we take to protect your privacy and trust.

How does Fettle handle my data?

Is my data anonymised?

Can I delete my data?

Does Fettle comply with GDPR?

Medical & Clinical Boundaries

How Fettle fits alongside healthcare - what we do, what we don't, and where clinical responsibility remains.

Does Fettle provide medical advice?

Can Fettle be used alongside GLP-1 medications?

Do I need to log everything perfectly?

Support & Getting Help

How to contact us, get support, and explore partnerships with Fettle.

How does Fettle personalise my nutrition?

How often does Fettle update my targets?

Do I need to log everything perfectly?

Get in Touch

Whether you're interested in using Fettle, exploring a partnership, or simply learning more about how we work, we'd love to hear from you.
Fettle is built for people and organisations who care abotu evidence-led nutrition, responsible technology and real-wrold impact - not quick fixes or gimmicks.

Guidance First, Tracking Second

We usually start with a short exploratory conversation to understand you're looking for and see whether there's a good fit.

There's no pressure, an no obligation.

Get in Touch

Guidance First, Tracking Second

We usually start with a short exploratory conversation to understand you're looking for and see whether there's a good fit.

There's no pressure, an no obligation.

Get in Touch

Guidance First, Tracking Second

We usually start with a short exploratory conversation to understand you're looking for and see whether there's a good fit.

There's no pressure, an no obligation.

Start eating Smarter Today

Fettle plans your nutrition before problems appear. We calculate how much to eat, show you what fits your targets, and turn meals into a ready-to-shop plan - updating everything weekly based on real progress, not guesswork

Join The Beta