What selected participants receive
Personalised performance nutrition analysis
A detailed analysis built around your own training, food intake, supplement use, goals and performance demands.
Insight based on your real training life
Not generic advice. The analysis is based on what you actually do, how you train, what you eat, and what you are trying to achieve.
truefuels product package
Selected participants will also receive a truefuels product package worth €XXX. Estimated value of the personalised analysis: €500. The product package is an additional thank you. The main value is the personalised insight.
Why I’m asking
I have spent my whole career trying to understand performance. Training matters. Talent matters. Mindset matters. But fuelling is one of the biggest areas where I think many athletes still rely on guesswork.
I have seen it at every level. Athletes track sessions in detail, analyse power, pace, heart rate, reps, recovery and sleep, but still often make nutrition decisions based on habit, convenience, product claims, or what someone else is doing. And then it goes wrong when it matters the most.
At truefuels, our job is to help athletes build reliable fuelling systems. That means understanding the need first, then the science, then testing properly, then building products and tools that actually make sense in the real world.
This study is part of that process. In partnership with Arla Foods Ingredients, we are running a consumer insight study to better understand the nutrition behaviours, fuelling challenges and performance-support needs of competitive athletes.
We are not asking for passive feedback. We are looking for athletes who are willing to engage properly, share useful information, communicate with the study team, and complete the process with care.
In return, selected participants will receive a level of personalised nutrition insight that most competitive athletes rarely get access to.
Is this study for you?
This study is designed for competitive athletes who take their training seriously and want to better understand how their nutrition supports their performance.
This study is for you if you:
- Train consistently
- Compete, or are preparing to compete
- Take part in endurance sport, functional fitness, hybrid training or another high-output sport
- Use sports nutrition, or are actively interested in it
- Want to understand your fuelling and nutrition patterns more clearly
- Are willing to log food intake accurately for 7 days
- Are comfortable sharing training data securely
- Respond reliably to communication from the study team
- Want individualised insight, not generic advice
This study is probably not for you if you:
- Only want a free product package
- Do not want to log food intake
- Do not want to share training data
- Are unlikely to respond to study communication
- Are not currently training consistently
- Want quick generic advice rather than a personalised analysis
What you get if selected
What you receive
A personalised performance nutrition analysis
- Individualised insight mapped against your training data, food intake, supplement use, goals and energy demands
- A clearer view of whether your current nutrition habits match your current training demands
- Practical insight into your fuelling patterns, gaps and opportunities
A truefuels product package worth €XXX — an additional thank you for committing properly to the study.
What I need from you
If selected, you will be asked to:
Your commitments- Complete a study survey — approximately 15 to 20 minutes
- Share training data securely through Terra API
- Log food intake carefully for 7 days using Cronometer
- Share supplement intake
- Communicate with the study team by email, SMS and/or WhatsApp
- Potentially take part in a 45-minute video call, if selected for a smaller follow-up group
On the food log: we do not want to hide that it takes effort. But it is also what creates the value. The more accurately you log, the more useful and personalised your final analysis becomes.
You will be guided through every step of the process.
Apply to join the study →
How it works
Six steps from application to personalised analysis.
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01
Apply
Complete the application form and tell us about your sport, training, goals, current nutrition habits and willingness to complete the full study process.
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02
Review
The study team will review applications and select participants who are the best fit for the project.
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03
Share your training data
Selected participants will be guided through secure training data sharing through Terra API.
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04
Log your nutrition
You will complete 7 days of food logging in Cronometer, including supplement intake.
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05
Add context
The study team may ask follow-up questions to better understand your training week, goals, routine and nutrition choices.
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06
Receive your analysis
Your personalised performance nutrition analysis will be prepared by the study team in collaboration with Alistair Brownlee.
Important distinction
This is a consumer insight study, not a clinical trial.
This is a consumer insight study.
- Not a clinical trial
- Not a product efficacy study
- Not designed to test, validate or prove the performance effects of any specific truefuels product
The purpose of the study is to better understand athlete behaviours, needs, routines, fuelling challenges and performance-support priorities in the real world. Participation may include receiving a truefuels product package, but the study is focused on insight, not product testing.
Questions you might have
No. The application begins with a survey, but the full study involves training data, food logging, supplement information, communication with the study team, and a personalised nutrition analysis for selected participants.
No. This is a consumer insight study. It is designed to understand athlete nutrition behaviours, fuelling challenges, routines and needs. It is not a clinical trial.
No. This study is not designed to test, validate or prove the performance effects of any specific truefuels product. There will be more opportunities to do this in the future for those who are interested.
The study is for competitive athletes in endurance sport, functional fitness, hybrid training and other high-output environments. We are looking for people who train consistently, compete or are preparing to compete, and are willing to complete the full process properly.
Selected participants will receive a personalised performance nutrition analysis, estimated at €500 in value, plus a truefuels product package worth €XXX.
You will need to complete the application survey, share training data securely, log food intake for 7 days using Cronometer, share supplement intake, and communicate with the study team when needed.
Food logging is what makes the analysis useful. A short survey alone does not provide enough detail to understand how your nutrition supports your training. The more accurately you log, the more useful and personalised your final analysis becomes.
No. Applications will be reviewed by the study team. Selected participants will receive next steps by email.
After submitting your application, the study team will review your details and contact selected participants with the next steps.
No. You do not need to be a professional athlete. You do need to be training consistently, competing or preparing to compete, and willing to complete the study process properly.
We are especially interested in athletes from endurance sport, functional fitness and hybrid training environments. This may include triathlon, running, cycling, swimming, rowing, Hyrox, CrossFit, obstacle racing, team sport athletes with high training loads, or other demanding sports.
The aim is personalised insight. Your analysis will be based on your training data, food intake, supplement use, goals and energy demands.
Apply to join the study
I’m asking for committed athletes to help us better understand what fuelling and nutrition really look like in the real world.
If you are willing to contribute properly, we will give you something valuable in return: personalised performance nutrition insight built around your own training reality.
You bring commitment, data and honesty.
We provide the analysis.
Applications will be reviewed by the study team. Selected participants will receive next steps by email.
The Arla Foods Ingredients x Alistair Brownlee Consumer Research Study, in partnership with truefuels, is a consumer insight study focused on athlete nutrition behaviours, fuelling challenges, and performance-support needs.


