Health Impact

Health Effects of Eating Disorders

Eating disorders are not only psychological illnesses — they take a profound toll on the body. Malnutrition, purging, and other behaviors can affect the heart, brain, bones, hormones, digestion, and nearly every organ system. Understanding these medical complications underscores why eating disorders are serious, and why early treatment matters.

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Refeeding Syndrome

A dangerous shift in fluids and electrolytes that can occur when a severely malnourished person is fed too quickly. Learn the symptoms, risk factors, and how it is prevented.

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Lanugo

The fine, downy hair the body grows to conserve heat during severe malnutrition — a recognized physical sign of anorexia. Learn what causes it and whether it goes away.

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Russell's Sign

Calluses or scarring on the knuckles caused by repeated self-induced vomiting — a recognized physical indicator of bulimia and purging. Learn what it means and whether it heals.

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Laxative Abuse

Laxatives do not cause real weight loss — the calories are already absorbed. How laxative abuse actually works, its serious risks, and how to stop safely.

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Bulimia's Effects on the Body

How bulimia affects the teeth, face, digestion, and heart — which effects are permanent, which reverse with recovery, and why early swelling is normal.

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Anorexia's Effects on the Body

How anorexia affects the heart, bones, brain, hormones, and hair — which effects reverse with recovery, and why bone loss is the main lasting exception.

The physical toll is a reason to seek help early.

Many medical complications improve or reverse with treatment and recovery.

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