Legal Notice — Sthenia
Last updated: 20 June 2026
This is an English translation provided for convenience. In the event of any discrepancy, the French version prevails.
Publisher
The Sthenia app and the sthenia.app website are published by:
- Jordan Buch, sole trader (entrepreneur individuel, "EI"), trading under the name JB Labs
- Address: 47 rue Vivienne, 75002 Paris, France
- SIRET: 91034828300029
- Registered with the French National Business Register (Registre national des entreprises, RNE)
- Email: [email protected]
- VAT: VAT not applicable, Article 293 B of the French General Tax Code (VAT-exempt small-business scheme)
Publication director
The publication director is Jordan Buch.
Hosting
Website (sthenia.app) Host: Cloudflare, Inc. Address: 101 Townsend Street, San Francisco, CA 94107, United States Phone: +1 (650) 319-8930
App data and services The app's data and services are hosted via Supabase, on infrastructure located in the European Union (Amazon Web Services, eu-west-3 region, Paris).
Intellectual property
All elements of the app and the website (content, texts, visuals, databases, recipes, trademarks) are protected by intellectual-property law and remain the property of the publisher or its partners. Any unauthorised reproduction or use is prohibited.
Personal data
The processing of personal data is described in the Privacy Policy, accessible from the app and the website.
Nutritional data
<!-- SYNC data attribution block — identical app + landing (C:\Sthenia lib/legal-content.ts, LEGAL_MENTIONS_EN). Any change requires the other repo. See docs/legal/ATTRIBUTIONS.md. -->The nutritional values used by the app draw notably on the following sources: Anses. 2025. Ciqual food composition table (Etalab Open License). Food product data: © Open Food Facts — database available under the Open Database License (ODbL), contents under the Database Contents License. https://world.openfoodfacts.org
Sthenia Score
<!-- SYNC Sthenia Score references block — identical app + landing (C:\Sthenia lib/legal-content.ts, LEGAL_REFERENCES_EN, "Sthenia Score" section). Any change requires the other repo. See docs/legal/REFERENCES_SCORE.md. -->The Sthenia Score is a proprietary nutritional quality indicator developed by Sthenia. It is distinct from, and in no way affiliated with, the official Nutri-Score: it is an in-house, educational assessment with a sports nutrition focus that values protein density. It rates a product's composition per 100 g (protein, energy density, fiber and, when the data exists, sugars, saturated fat, salt and degree of processing). It covers 100 g of a single food: it does not qualify a meal, a day, or a diet. Its methodological foundations:
- Revised Nutri-Score algorithm (per-100 g nutrient scales, non-compensation rule, fats assessed via the saturated-fat/total-fat ratio). Merz B, Temme E, Alexiou H et al., "Nutri-Score 2023 update", Nature Food, 2024, 5:102-110; official calculation workbook, Santé publique France, 2024.
- NOVA classification of food processing. Monteiro CA et al., Public Health Nutrition, 2019.
- Associations between ultra-processed foods and health. Umbrella review: Lane MM et al., BMJ, 2024;384:e077310. Controlled trial: Hall KD et al., Cell Metabolism, 2019, 30(1):67-77.
- Protein density for athletes: ISSN position stand on protein and exercise. Jäger R et al., 2017, JISSN, 14:20.
- Regulatory thresholds for nutrition claims ("source of" / "high in" protein or fiber): Regulation (EC) No 1924/2006.
Contact
For any question: [email protected].