Terms of Use

Acceptance

These Terms of Use (“Terms”) govern your access to and use of the S8D website and web application at s8d.app (the “Service”). By creating an account or using the Service, you agree to these Terms. If you do not agree, do not use the Service.

Eligibility

The Service is intended for adults (18 years of age or older). The Service computes nutritional targets based on adult Recommended Dietary Allowances (RDAs) and Tolerable Upper Intake Levels (ULs); it is not appropriate for children, adolescents, or pregnant or lactating individuals without supervision from a qualified healthcare professional. By using the Service, you represent that you are at least 18 years old.

What S8D is

S8D is an educational nutrition planning tool. It uses published scientific data (USDA FoodData Central) and mathematical optimization to suggest daily food combinations that meet established nutrient guidelines (RDAs, ULs) from the National Institutes of Health and the Institute of Medicine.

Medical disclaimer — important

S8D is not a medical device, not a diagnostic tool, and not a substitute for professional medical advice, diagnosis, or treatment. Information and outputs from the Service are provided for educational and informational purposes only.

• Consult before you start. Talk to your physician or a qualified healthcare professional before making any significant dietary changes, particularly if you have any medical condition, are taking medication, are pregnant or nursing, have food allergies or sensitivities, or have a history of disordered eating.
• Discontinue if adverse symptoms occur. Stop using the Service and seek medical attention immediately if you experience any adverse health effects you believe may be related to dietary changes you made based on the Service’s output.
• No provider-patient relationship. Use of the Service does not create a physician-patient, dietitian-client, or other healthcare provider relationship between you and S8D or its operators.
• Follow your provider, not us. If the Service’s output is inconsistent with the advice of your healthcare provider, follow your provider’s advice.

Account and security

You are responsible for maintaining the confidentiality of your account credentials and for all activities that occur under your account. Notify us immediately at security@s8d.app of any unauthorized access. S8D is not liable for losses resulting from your failure to safeguard your credentials.

Acceptable use

You agree not to:

• Reverse-engineer, decompile, scrape, or attempt to extract the Service’s source code, optimizer formulation, or constraint logic.
• Bulk-export nutrition data, foods, or solver outputs for republication or redistribution.
• Impersonate any person or entity, or misrepresent your affiliation with any person or entity.
• Interfere with or disrupt the Service, including by sending excessive automated requests, attempting to overload our infrastructure, or probing for vulnerabilities without explicit written permission.
• Use the Service to harass, harm, or transmit unlawful, harmful, or infringing content.
• Use the Service in violation of any applicable law or regulation.

Accuracy and data sources

Nutrient data comes from USDA FoodData Central and may not reflect the exact composition of the specific food products you purchase. We make reasonable efforts to use accurate, up-to-date data, but we do not guarantee the precision of any individual nutrient value. The Service’s computed targets and food amounts are estimates, not prescriptions.

User-contributed content

If you add custom foods, save recipes, or otherwise contribute content to the Service (“User Content”):

• You are responsible for the accuracy of any nutrient information you enter. S8D is not liable for errors in user-contributed food data.
• You retain ownership of your User Content. You grant S8D a non-exclusive, worldwide, royalty-free license to host, store, display, and process your User Content solely for the purpose of operating and improving the Service for you.
• You represent that you have the right to provide the User Content and that it does not violate the rights of any third party.

Intellectual property

The Service, including its design, software, optimizer formulation, brand assets, and content (excluding User Content and USDA-sourced data), is owned by S8D and its licensors and is protected by copyright, trademark, and other intellectual property laws. You are granted a limited, non-exclusive, non-transferable license to use the Service for your personal, non-commercial use, subject to these Terms.

Disclaimer of warranties

THE SERVICE IS PROVIDED ON AN “AS-IS” AND “AS-AVAILABLE” BASIS. TO THE MAXIMUM EXTENT PERMITTED BY LAW, S8D DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, AND ANY WARRANTIES ARISING OUT OF COURSE OF DEALING OR USAGE OF TRADE. We do not warrant that the Service will be uninterrupted, error-free, secure, or that the nutrition guidance it provides will produce any particular health, fitness, or other result.

Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, S8D AND ITS OPERATORS, OFFICERS, EMPLOYEES, AND AGENTS SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS, DATA, USE, OR GOODWILL, ARISING OUT OF OR RELATING TO YOUR USE OF (OR INABILITY TO USE) THE SERVICE, INCLUDING BUT NOT LIMITED TO ADVERSE HEALTH OUTCOMES FROM FOLLOWING ANY NUTRITION SUGGESTIONS PROVIDED.

IN NO EVENT SHALL S8D’S AGGREGATE LIABILITY ARISING OUT OF OR RELATING TO THESE TERMS OR THE SERVICE EXCEED ONE HUNDRED U.S. DOLLARS ($100). Some jurisdictions do not allow the exclusion or limitation of certain damages; in those jurisdictions, our liability is limited to the maximum extent permitted by law.

Indemnification

You agree to indemnify, defend, and hold harmless S8D and its operators from and against any claims, liabilities, damages, losses, and expenses (including reasonable attorneys’ fees) arising out of or relating to (a) your violation of these Terms, (b) your User Content, (c) your violation of any law or the rights of any third party, or (d) any health outcomes resulting from your use of the Service.

Termination

You may stop using the Service and delete your account at any time. We may suspend or terminate your access to the Service at our discretion, with or without notice, for any reason including violation of these Terms. Sections that by their nature should survive termination (including Disclaimers, Limitation of Liability, Indemnification, and Dispute Resolution) will survive.

Dispute resolution and arbitration

Please read this section carefully — it affects your legal rights.

Any dispute, claim, or controversy arising out of or relating to these Terms or the Service shall be resolved exclusively by binding individual arbitration administered by JAMS under its Streamlined Arbitration Rules. The arbitration shall be conducted in English in San Francisco, California, or remotely by mutual agreement. The arbitrator’s decision shall be final and binding.

Class action waiver. You and S8D agree that any dispute will be brought in your or our individual capacity only, not as a plaintiff or class member in any purported class, consolidated, or representative action. The arbitrator may not consolidate more than one person’s claims and may not preside over any form of class proceeding.

Jury trial waiver. You waive any right to a jury trial in any proceeding arising out of these Terms.

Limitations period. Any claim arising out of or relating to these Terms or the Service must be filed within one (1) year after the claim arose, or it is permanently barred.

Notwithstanding the above, either party may bring an individual action in small-claims court for disputes within that court’s jurisdiction. Nothing in this section prevents either party from seeking injunctive or equitable relief in a court of competent jurisdiction to protect intellectual property rights.

Governing law

These Terms are governed by the laws of the State of California, USA, without regard to its conflict of laws principles. Subject to the arbitration provisions above, the exclusive venue for any action permitted in court shall be in San Francisco County, California.

Changes to these terms

We may update these Terms from time to time. When we make material changes, we will update the “Last updated” date at the top of this page and notify registered users by email. Continued use of the Service after the effective date constitutes acceptance of the updated Terms.

Miscellaneous

Entire agreement. These Terms, together with the Privacy Policy, constitute the entire agreement between you and S8D regarding the Service.

Severability. If any provision of these Terms is held unenforceable, the remaining provisions remain in full force and effect.

No waiver. Our failure to enforce any provision is not a waiver of our right to do so later.

Assignment. You may not assign these Terms without our prior written consent. We may assign these Terms in connection with a merger, acquisition, or sale of assets.

Notices. We may send notices to you via the email address associated with your account. Notices to S8D should be sent to legal@s8d.app.

Contact

Questions about these Terms? Email legal@s8d.app.