No, that's not a condition, that's a symptom. I don't need a study to say that pancakes reduce hunger.

Would you need a study to say pancakes reduce anxiety? I'm not sure I follow your logic or the distinctions you're making.

Something can reduce anxiety and yet not cure "the APA definition of Anxiety Disorder" or whatever. Also, whether something is a cure is always a personal question. Even if petting kittens is a proven cure it's not going to work for you if you're allergic to them.

For pancakes, definitely we'd need a study. They're not commonly accepted as being able to reduce anxiety.

Anxiety is anxiety, a feeling. Anxiety disorders are what you mean perhaps?

Then there's no mention of the latter.