This relationship can go both ways. Anxiety can be a big factor in triggering an eating disorder or leading to disordered eating habits. An eating disorder can also worsen pre-existing anxiety and can also cause anxiety attacks in relaiton to proximity to food or eating.

Occasionally, yes. There are existing articles which talk of slugs eating newly hatched monarch larvae, and I personally just witnessed a slug eating a freshly eclosed butterfly.

Demeter was a daughter of Cronus and Rhea. She was swallowed by Cronus and later vomited up because Zeus tricked Cronus into eating vomitus.

There is definitely a correlation between nutrition and depression. Eating foods that are sugary, fatty, or high in sodium can lead to feeling unwell, which can contribute to pre-existing depression.

Glamour is about existing. Existing gracefully.