Skin and Nails Those of us who read (and write) about beauty know what a powerful impact the "super foods" and eating well can have on our appearance. It should come as no surprise, then, that those who deprive themselves of even the most basic nutrition, have dry, scaly skin that appears very pale, yellow or even grey. If self-induced vomiting is in the mix, the face and cheeks can look swollen. (Vomiting can also cause the tiny blood vessels in the whites of the eyes to rupture, leaving a perma-bloodshot look.)
Like hair, nails need keratin to stay strong and healthy, so those of an anorexic or bulimic will be dry and brittle and the fingers and nail beds may appear slightly blue (due to poor circulation). In addition, the hands of those who engage in self-induced vomiting often have telltale calluses or bruises on them (from rubbing against the person's teeth).
Next: How eating disorders affect the look of the body
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