Table 1.

Potential causes of fatty liver in normal-weight individuals

Viral	Hepatitis C, Human immunodeficiency virus (HIV)
Pharmacological	Tamoxifen, Amiodarone, some calcium channel blockers, corticosteroids, antidepressants, antipsychotics, herbal supplements
Heritable	Abetalipoproteinemia, lipodystrophies, cholesterol ester storage disease, Wilson’s disease, Wolman disease, PNPLA3 mutations
Hormonal	Hypothyroidism, estrogen deficiency
Metabolic	Insulin resistance, visceral adiposity, high dietary fructose intake, high dietary intake of refined carbohydrates and saturated fats
Other	Dietary choline deficiency, total parenteral nutrition, celiac disease, small intestinal bacterial overgrowth, gut dysbiosis, covert alcohol abuse