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Sports Nutrition Expert
Lewis Gough’s evidence-based fuelling and supplement guidance personalized to your training, your body, and your daily life through Ottavia.
Nutrition scientist. Professor. Co-author.
Lewis Gough’s message is simple: supplements only matter once the basics are in place. Match the aid to the demand, dose it with evidence, and rehearse it in training before it counts.
Lewis Gough is a Professor of Nutrition and Physiology at Birmingham City University, where his research focuses on sports nutrition and ergogenic aids for endurance athletes, particularly cyclists. His work examines how supplements like sodium bicarbonate, caffeine, nitrate and beta-alanine actually affect performance.
As co-author of Nutrition and Supplements in Cycling, he translates applied research into practical, evidence-based guidance: which aids are worth using, how to dose and time them, and how to protect gut tolerance so they help rather than hinder.

Educational, not medical advice. Subscription happens in the Ottavia app.
Your wearable data, habits, and goals come together with expert knowledge to deliver personalized guidance.
How Ottavia and Lewis Gough work for you

Bring together your wearables, health apps, meals, symptoms, and daily habits.

Ottavia recognizes patterns across your sleep, recovery, activity, nutrition, and lifestyle.

Every recommendation combines your health data with the expertise you trust.
The full Ottavia app, with Lewis Gough's knowledge applied to every report, question and log.

Start every day with clarity.

Expert guidance for every decision.

Know what to eat and why.

Plans that evolve with you.

Helpful guidance at the right moment.

Health isn't built in a day. It's built through years of small decisions, changing bodies, and evolving needs.

Every day adds another piece to your health story. Over time, Ottavia connects your wearables, biomarkers, blood tests, symptoms, habits, and life events to uncover patterns unique to you.
Women's health isn't a niche. From menstrual health and pregnancy to perimenopause and healthy aging, Ottavia is built to understand the biological changes that shape women's lives.


No single expert has every answer. Build a trusted team of experts that grows with you, bringing together different perspectives for every stage of your life.
Connect your wearable or log your sleep, meals and workouts. Each morning Ottavia reads your night and your day, applies Lewis Gough's methods where they fit, and gives you one clear plan. Ask anything during the day; the answers use your own data.
Lewis Gough's published method, applied by Ottavia to your own sleep, training and meals every day. You see where that work shaped a message, every time.
ChatGPT answers from general knowledge and forgets you between questions. Ottavia reasons from your actual data, every day, and applies a named expert's published method with attribution. It is not advice in general; it is about your own Tuesday.
No. Lewis Gough guides and educates through Ottavia, and never diagnoses or prescribes.
No. Ottavia has read Lewis Gough's published work and applies it inside your guidance. Your questions go to Ottavia; that thinking comes back in the answer, attributed.
Your data stays in your Ottavia account and is used only to guide you. The third-party AI services Ottavia uses never learn who you are: they see the health context needed to answer you, never your name or contact details. Your data is never sold, never used to train AI models, and is deleted from those services when you delete your account.
No. Experts contribute their methods to Ottavia; they never see individual users or their data.
Ottavia works best with Apple Watch, Garmin or Google Health. You can also log sleep, meals and workouts yourself.
The price is shown clearly before you subscribe. Manage or cancel anytime in the Experts hub; you keep access until the end of the period you paid for.