The scientific name for table salt is sodium chloride.
The most moral and non-offensive term would be a “Resident of (Name of home or place)”, resident in a personal care home(or some other term for a care home), and sometimes a Patient- but only if the patient is living in a medical care home, like part of a hospital for example. Awkwardly explained, but I hope you understand!
True, Following the 8x8 rule is recommended in living a healthy life.
All of these are serious health risk from anorexia, however i think the most serious health risk from anorexia nervous is Death.