Fatty liver disease occurs when excess fat builds up in the liver cells, impairing its function. Early stages are often asymptomatic but can progress to inflammation (steatohepatitis) and liver damage. Fatty liver disease occurs when excess fat builds up in the liver cells, impairing its function. Early stages are often asymptomatic but can progress to inflammation (steatohepatitis) and liver damage. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle