What consequence may occur as a result of fatty liver disease?

Fatty liver disease can lead to liver enlargement, known as hepatomegaly. This occurs because excess fat accumulates in the liver cells, causing the liver to increase in size. This enlargement is an indicator of the liver's response to the fat buildup and may signal more serious conditions if the fat accumulation is significant or persistent, such as inflammation or scarring of the liver.

The other options do not align with the typical consequences associated with fatty liver disease. While decreased appetite can occur in some individuals, it is not a direct consequence and is not as definitive as liver enlargement. Increased bone density is not related to fatty liver disease, as the condition primarily impacts the liver rather than bone health. Similarly, improved energy levels are generally not a result of fatty liver disease, as this condition can often lead to fatigue and impaired metabolic function. Thus, liver enlargement is a clear and direct consequence of fatty liver disease.