Orthorexia vs. Anorexia
Orthorexia and anorexia can look similar — both involve rigid food rules and significant anxiety around eating — but the underlying motivation is different.
The core distinction
Anorexia is driven primarily by fear of weight gain and a desire to be smaller. Orthorexia is driven by an obsession with food “purity” or “cleanliness” — the fixation is on how food is prepared or what it contains, not on body size, even though the restriction that results can look similar and can become just as severe.
Key differences
| Factor | Orthorexia | Anorexia |
|---|---|---|
| Motivation | Food quality/purity focus | Weight/shape focus |
| Self-image | May not want to lose weight at all | Central goal is often to be smaller |
| Social framing | Often praised as health-conscious | Usually recognized as concerning sooner |
| Overlap | Can develop into or alongside anorexia | — |
Why they’re confused
Both involve rigid rules, anxiety around “safe” and “unsafe” foods, and real physical consequences when taken far enough.
When to seek help
If food rules are limiting someone’s ability to eat normally, socialize, or function, that’s worth an evaluation regardless of what it’s ultimately called.