About Sunn
Sunn is an AI nutrition coach that lives on WhatsApp. No app to download, no database to search. Just text what you ate or send a photo — and get instant calorie and macro tracking, personalized coaching, and accountability.
The name comes from the Norwegian word sunn, meaning healthy. It also sounds like "sun" — because eating well should feel warm, not punishing.
Why Sunn Exists
I built Sunn because I kept failing at nutrition tracking. Not because I didn't know what to eat — but because every app made tracking feel like homework. Search a database. Pick the right entry. Estimate your portion. Do it three times a day. I'd last a week, maybe two, then quit.
The insight was simple: what if tracking was as easy as texting a friend? You already use WhatsApp every day. You already send photos. Why build another app when you can meet people where they already are?
The Team
Espen Opdahl
Founder & Developer. Based in Norway. Built Sunn from scratch — from the AI coaching engine to the WhatsApp integration to the nutrition database. Believes the best nutrition plan is the one you actually follow.
How We Build Content
All nutrition data on this site comes from the USDA FoodData Central database — the same source used by hospitals, registered dietitians, and government nutrition programs. Our blog articles reference peer-reviewed research from PubMed and NIH when making health claims.
We are transparent about what Sunn is: an AI tool that helps you track and understand your nutrition. It is not a replacement for professional medical advice. If you have a medical condition or specific dietary needs, please consult a qualified healthcare provider.
Contact
Questions, feedback, or partnership inquiries: hello@heysunn.com