Support for your workspace.

Contact

Tell us whether you are using the website, iPhone, iPad or Mac app, what you were trying to do, and the message you saw. Include the app version and device/software version when available. Please do not send your Apple password, verification code or sign-in tokens.

Using EquiNutria

The labeled public example shows a partial ingredient comparison. Sign in with Apple to save horse profiles, rations and measurements to your account. Current saved records are available through the same account on supported devices. Account features and server calculations require an internet connection.

Add your own ingredient

In Ration, choose Add custom ingredient when the USDA selection does not contain your material. Enter its name, category, source or laboratory-analysis description, and daily kg as fed. Select as-fed or dry-matter basis and enter only known nutrient values in the displayed units. Dry-matter basis requires a dry-matter percentage; a source link is optional. Blank fields remain unknown. Custom values are labeled as user-provided and saved within your ration, separately from USDA records. Recording a source does not independently verify its values.

Apple sign-in and access

Apple is the only sign-in method. Use the same Apple account on the website and native app. If your session has expired, sign in again. If Apple sign-in is cancelled or unavailable, retry after checking your internet connection. If the application reports that sign-in is not configured, contact support; there is no alternate password or demonstration account.

For an access problem, include the time and error message. Support will not ask for your Apple password or a verification code.

Understanding the results

• 100% means the estimated requirement is met numerically. It is not a safe upper limit and does not certify a complete, suitable ration.
• Unknown is not zero. When a source does not supply a nutrient value, the complete ration total remains unknown; a known subtotal may be shown separately.
• Source differences stay visible. A value may be withheld where the source has an unresolved discrepancy or the scenario is outside the supported range.
• Average feed values have limits. The real feed batch, processing method, pasture intake and individual horse can differ from table assumptions.

EquiNutria supports nutrition planning and professional review. It does not diagnose or treat disease, replace a veterinary examination, or automatically establish that a ration is safe for an individual horse. For a clinical problem, contact your veterinarian.

Account data and deletion

Open Account to sign out, export your data from the website, or delete your account. Successful account deletion removes active records and revokes stored Apple authorization. If the operation reports a temporary Apple connection error, retry; the account has not yet been deleted. If you cannot access the account, contact support.

Read the privacy policy for cookies, storage and the seven-day operational backup schedule.

Sources and acknowledgments

Requirement estimates use separately attributed published methods from Nutrient Requirements of Horses: Sixth Revised Edition, National Research Council, 2007. Source chapters, table references, model assumptions and unresolved differences are shown in the workspace. View the NRC publication.

All built-in ingredient composition records are sourced from USDA FoodData Central, with their exact FDC identifiers. USDA food-energy values are not treated as equine digestible energy; that value remains unknown for these records. The preset selection has no forage or validated equine digestible-energy values; custom analyses can supply additional known inputs. No NRC feed-composition dataset is used by the current calculation runtime. USDA FoodData Central data are provided under CC0 public-domain terms.

EquiNutria is an independently operated application. These source acknowledgments do not imply endorsement by NRC, the National Academies, USDA or Apple.